Edit My Profile

Integrated Search Menu

Search in:

John Kouvetakis

Profile photo
School of Molecular Sciences
Professor
Faculty, TEMPE Campus, Mailcode 1604
Biography: 

John Kouvetakis joined the School of Molecular Sciences in 1992, as an assistant professor. His research interests include solid-state and molecular inorganic chemistry, as well as materials science of main group semiconductors.

Professor Kouvetakis received his B.S. and Ph.D. degrees in chemistry from the University of California at Berkeley, in 1984 and 1988, respectively. From 1988 to1989 he was a postdoctoral fellow with IBM, T. J Watson Research Center, Yorktown Heights NY. From 1989 to 1992, he was a staff scientist at Raychem Corporate Labs (part of TYCO International) in Menlo Park, CA. 

CV
Binary Data Curriculum Vitae
Education: 
  • Ph.D. Chemistry, University of California-Berkeley 1988
  • B.S. Chemistry, University of California-Berkeley 1984
Research Website: 
http://krg.asu.edu/
Research Interests: 

My research activities bridge the areas of inorganic chemistry, applied physics and materials science of semiconductor and refractory materials. The design, preparation and applications of novel solid state and molecular systems are particularly emphasized. Current thrusts include: (a) synthesis of purpose-built, main group inorganic hydrides with tailored reactivities and stoichiometries, enabling formation of functional material architectures that cannot be obtained by conventional routes, (b) growth of silicon-based photonic materials for the development of prototype photodetectors, modulators, and multijunction photovoltaic devices, (c) integration of dissimilar materials with Si technologies (including III-V and II-VI compounds for monolithic integration) via epitaxy driven synthesis methods, (d) advanced wide band gap semiconductor materials for breakthrough applications in solar energy, solid state lighting and optoelectronics semiconductors, (e) solid-state inorganic chemistry based on light elements (refractory carbides, nitrides, borides and C-N frameworks).

Publications: 
  • M. Hogsed, K. Choe, N. Miguel, B. Wang, J. Kouvetakis.  Radiation-induced electron and hole traps in Ge1-xSnx (x=0-0.094).  Journal of Applied Physics (2020).
  • C. Xu, P.M. Wallace, D.A. Ringwala, S.L.Y. Chang, C.D. Poweleit, J. Kouvetakis, J. Menendez.  Mid-infrared (3-8 mu m) Ge1-ySny alloys (0.15 < y < 0.30): Synthesis, structural, and optical properties.  Applied Physics Letter (2019).
  • Chi Xu, Dhruve Ringwala, Duo Wang, Lei Liu, Christian D. Poweleit, Shery L.Y. Chang, Houlong L. Zhuang, Jose Menendez, John Kouvetakis, Synthesis and Fundamental Studies of Si-Compatible (Si)GeSn and GeSn Mid-IR Systems with Ultrahigh Sn Contents.  Chemistry of Materials (2019).
  • M-Y Ryu, T.R. Harris, B. Wang, Y.K. Yeo, M.R. Hogsed, S.J. Lee, J.S. Kim, J. Kouvetakis, Temperature-Dependent Photoluminescence Studies of Ge1-ySny (y=4.3%-9.0%) Grown on Ge-Buffered Si: Evidence for a Direct Bandgap Cross-Over Point.  Journal of the Korean Physical Society (2019).
  • B. Wang, M.R. Hogsed, T.R. Harris, P.M. Wallace, J. Kouvetakis.   Enhanced optical and electrical performance of Ge1-xSnx/Ge/Si(100) (x=0.062) semiconductor via inductively coupled H-2 plasma treatments.  Semiconductor Science and Technology (2019).
  • B. Wang, T.R. Harris, M.R. Hogsed, Y.K. Yeo, M-Y Ryu, J. Kouvetakis.  Comparison study of temperature dependent direct/indirect bandgap emissions of Ge1-x-ySixSny and Ge1-ySny grown on Ge buffered Si.  Thin Solid Films (2019).
  • C. Xu, J. Kouvetakis, J. Menendez.  Doping dependence of the optical dielectric function in n-type germanium.  Journal of Applied Physics (2019).
  • C.L. Senaratne, D. Gallagher, Tosh Aoki, J. Kouvetakis, and J. Menéndez. Advances in light emission from hetero-epitaxial group IV alloys via lattice strain engineering and n-type doping based on custom designed chemistries. Chemistry of Materials (2014).
  • C.L. Senaratne, J. D. Gallagher, L. Jiang, J. Menéndez, and J. Kouvetakis. Ge1-ySny alloys on Ge-buffered Si: synthesis, microstructural, and optical properties. Journal of Applied Physics (2014).
  • Chi Xu, C.L. Senaratne, J.Kouvetakis, and J. Menéndez. Frustrated incomplete donor ionization in ultra-low resistivity germanium-on-silicon semiconductors. Applied Physics Letters (2014).
  • J. Kouvetakis and R. Roucka. Zirconium and hafnium boride alloy templates on silicon for nitride integration applications. US patent 8,803,194 (issued Aug 12, 2014) (2014).
  • J. Kouvetakis, I.S.T Tsong, C.Hu and J. Tolle. Method for growing Si-Ge semiconductor materials and devices on substrates. US patent 8821635 (issued Sept 2, 2014) (2014).
  • J. Kouvetakis, James Gallagher and J. Menendez. Direct gap Group IV semiconductors for next generation Si-based IR photonics. Materials Research Society Symposium Proceedings (Film silicon science and technology) invited paper (2014).
  • J. Kouvetakis, R. Favaro, A.V.G. Chizmeshya, G.J. Grzybowski, C. Senaratne, J. Menéndez. Molecular strategies for configurational sulfur doping of group IV semiconductors grown on Si(100) using S(MH3)2 (M=Si,Ge) delivery sources: An experimental and theoretical inquiry. Chemistry of Materials (2014).
  • J.D. Gallagher, C.L. Senaratne, J. Kouvetakis, and J. Menéndez. Compositional dependence of the bowing parameter for the direct and indirect band gaps in Ge1 - y Sn y alloys. Applied Physics Letters (2014).
  • L. Jiang, C. Xu, J.D. Gallagher, R. Favaro, T. Aoki, J. Menéndez and J. Kouvetakis. Development of light emitting group IV ternary alloys for long wavelength optoelectronic applications. Chemistry of Materials (2014).
  • L. Jiang, J.D. Gallagher, C.L. Senaratne, J. Mathews, J. Kouvetakis, and J. Menéndez. Compositional dependence of the direct and indirect band gaps in Ge1-ySny intrinsic and n-type alloys from room temperature photoluminescence: Implications on the indirect to direct gap transitions. Semiconductor Science and Technology (2014).
  • L. Jiang, Toshi Aoki, D. J. Smith, A. V.G. Chizmeshya, J. Menendez and J. Kouvetakis. Nanostructure-property control via directed molecular assembly of new AlPSi3/Si(100) semiconductors: Theory meets experiment at the atomic level. Chemistry of Materials (2014).
  • Liying Jiang, Toshihiro Aoki, John Kouvetakis, and José Menéndez. High resolution EELS study of Ge1-ySny and Ge1-x-ySixSny alloys. Microscopy and Microanalysis (2014).
  • T. Aoki, L. Jiang, A. V. G. Chizmeshya, J. Menéndez, J. Kouvetakis, and David J. Smith. Atomic scale studies of structure and bonding in A1PSi3 alloys grown lattice-matched on Si(001). Microscopy and Microanalysis (2014).
  • T. R. Harris, Mee-Yi Ryu, Yung Kee Yeo, R. T. Beeler and John Kouvetakis. Electrical characterization studies of p-type Ge, Ge1-ySny, and Si0.09Ge0.882Sn0.028 grown on n-Si substrates. Current Applied Physics (2014).
  • T. R. Harris, Mee-Yi Ryu, Yung Kee Yeo, Richard T. Beeler, and J. Kouvetakis. Observation of heavy- and light-hole split direct bandgap photoluminescence from tensile-strained GeSn. Journal of Applied Physics (2014).
  • C. Xu, R. T. Beeler, L. Jiang, J. Gallagher, R. Favaro, J. Menéndez and J. Kouvetakis. Synthetic routes and optical properties of Sn-rich Ge1-x-ySixSny materials and devices. Thin Solid Films (2013).
  • Chi Xu, Liying Jiang, J. Kouvetakis and J. Menendez. Optical properties of Ge1-x-ySixSny alloys with y > x: direct band gaps beyond 1550 nm. Applied Physics Letters (2013).
  • Chi Xu, R.T. Beeler, Liying Jiang, A.V.G Chizmeshya J. Menendez and J. Kouvetakis. New strategies for Ge on Si materials and devices: Fabrication based on non conventional hydride chemistries: The tetragermane case. Semiconductor Science and Technology (2013).
  • G. Grzybowski, C. Senaratne, A.V.G. Chizmeshya, J. Menendez and J. Kouvetakis. Fundamental experimental and theoretical aspects of high-order Ge-hydride chemistry for versatile low-temperature Ge-based materials fabrication. Journal of Materials Chemistry C (2013).
  • J. D. Gallagher, C. Xu, L. Jiang, J. Kouvetakis, and J. Menéndez. Fundamental band gap and direct-indirect crossover in Ge1-x-ySixSny alloys. Applied Physics Letters (2013).
  • J. Kouvetakis and R. Roucka. Zirconium and hafnium boride alloy templates on silicon for nitride integration applications. US Patent 85,456,27 (Issued Oct 1, 2013) (2013).
  • J. Kouvetakis, C. Ritter, C-W Hu, I.S.T. Tsong, and A.V.G. Chizmeshya. Silicon-germanium hydrides and methods for making and using same. US Patent 8,518,360 (August 27, 2013) (2013).
  • J. Kouvetakis, Cole Ritter, J. Tolle. Hydrides with silicon and germanium core atoms and methods of synthesizing same. US Patent 8,568,681 B2 (awarded Oct 29, 2013) (2013).
  • John Kouvetakis and Cole Ritter. Silicon-germanium hydrides and methods for making and using same. US Patent 8,524,582 (awarded September 3, 2013) (2013).
  • L. Jiang, G. Grzybowski, P. Sims, A.V.G. Chizmeshya, D.J. Smith, J. Kouvetakis, and J. Menéndez. Nanoscale assembly of silicon-like Al(As1-xNx)ySi5-2y alloys: Fundamental theoretical and experimental studies of structural and optical properties. Physical Review B (2013).
  • Mee-Yi Ryu, Tom R. Harris, Y. K. Yeo, R. T. Beeler, J. Kouvetakis. Temperature-dependent photoluminescence of Ge/Si and Ge1-ySny/Si, indicating possible indirect-to-direct bandgap transition at lower Sn content. Applied Physics Letters (2013).
  • P. Sims, A.V.G. Chizmeshya, L. Jiang, R.T. Beeler, C. D. Poweleit, J. Gallagher, D. J. Smith, J. Menéndez and J. Kouvetakis. Rational design of mono-crystalline Ge5-2y(InP)y/Ge/Si(100) semiconductors: Synthesis and fundamental properties. Journal of the American Chemical Society (2013).
  • R. T. Beeler, J. Gallagher, C. Xu, L. Jiang, C. Senaratne, D. J. Smith, J. Menéndez, A.V.G. Chizmeshya, and J. Kouvetakis. Bandpap-engineered Group-IV optoelectronic semiconductors, photodiodes and prototype photovoltaic devices. ECS Journal of Solid State Science and Technology (2013).
  • G. Grzybowski, R. Beeler, A.V.G. Chizmeshya, T. Watkins, L. Jiang and J. Kouvetakis. Ultra low-temperature epitaxy of Ge-based semiconductor and optoelectronic structures on Si(100): Introducing higher order germanes (Ge3H8, Ge4H10). Chemistry of Materials (2012).
  • A.V.G. Chizmeshya, J. Kouvetakis, R. Beeler and J. Menendez. Synthesis of monocrystalline silicon-like (III-V)-(IV)3 semiconductors. Electrochemical Transactions (2012).
  • Chi Xu, R.T. Beeler, G. Grzybowski, A.V.G Chizmeshya J. Menendez and J. Kouvetakis. Molecular synthesis of high-performance near-IR photodetectors with independently tunable structural and optical properties. Journal of the American Chemical Society (2012).
  • G. Grzybowski, L. Jiang, R.T. Beeler, D.J. Smith, J. Menéndez and J. Kouvetakis. Next generation of Ge1-ySny (y = 0.01-0.09) alloys grown on Si(100) via Ge3H8 and SnD4: Reaction kinetics and tunable emission. Applied Physics Letters (2012).
  • G. Grzybowski, R.T. Beeler, L. Jiang, D.J. Smith, J. Kouvetakis, and J. Menéndez. GeSn alloys on Si using deuterated stananne and trigermane: Synthesis and properties. Electrochemical Transactions (2012).
  • G. Grzybowski, T. Watkins, L. Jiang, D.J. Smith, A.V.G. Chizmeshya, J. Menéndez and J. Kouvetakis. Synthesis and bonding and optical properties of monocrystalline Al(As1-xPx)Si3 alloys on Si(100). Chemistry of Materials (2012).
  • J. Kouvetakis and C. Ritter. Novel silicon-germanium hydrides and methods of making and using same. US Patent 8,133,802 B2 (awarded 03/2012) (2012).
  • J. Kouvetakis, A.V.G Chizmeshya, T Watkins, G. Grzybowski, L. Jiang, R. T Beleer, and J. Menéndez. Monocrystalline Si3Al(As1-xNx) and Si3Al(P1-xNx) alloys with diamond-like structures: New chemical approaches to Si integration. Chemistry of Materials (2012).
  • J. Kouvetakis, C. Ritter, C-W Hu, I.S.T. Tsong, and A.V.G. Chizmeshya. Silicon-germanium hydrides and methods for making and using same. US Patent 8,216,537 B2 (awarded 07/2012) (2012).
  • Mee-Yi Ryu, Y. K. Yeo, Mohamed Ahoujja, Tom Harris, Richard Beeler, and John Kouvetakis. Degenerate parallel conducting layer and conductivity type conversion observed from p-Ge1-ySny (y=0.06%) grown on n-Si substrates. Applied Physics Letters (2012).
  • R. Beeler, D. J. Smith, J. Menendez and J. Kouvetakis. SiGeSn photodiodes with 1eV optical gaps integrated on Si(100) and Ge(100) platforms. IEEE Journal of Photovoltaics (2012).
  • R.T. Beeler, C. Xu, G. Grzybowski, D.J. Smith, J. Menéndez and J. Kouvetakis. Compositional dependence of the absorption edge and dark currents in Ge1-x-ySixSny/Ge(100) photodetectors grown via ultra-low-temperature epitaxy of Ge4H10, Si4H10, and SnD4,. Applied Physics Letters (2012).
  • R.T. Beeler, J. Menéndez, D.J. Smith, and J. Kouvetakis. High performance Group IV photodiodes with tunable absorption edges based on ternary SiGeSn alloys. Electrochemical Transactions (2012).
  • T. Watkins, A.V.G Chizmeshya, L. Jiang, D. J. Smith, J. Menéndez and J. Kouvetakis. (AlP)xSi5-2x/Si(100) alloys assembled on Si(100) from Al-P-Si3 building units. Applied Physics Letters (2012).
  • C. Weng, J. Kouvetakis and A.V.G. Chizmeshya. "A novel predictive model for formation enthalpies of Si and Ge hydrides with propane- and butane-like structures". Journal of Computational Chemistry (2011).
  • G. Grzybowski, R. Roucka, J. Mathews, R.T Beeler, J. Kouvetakis and J. Menéndez. "Direct vs. indirect optical recombination in Ge films grown directly on Si substrates". Physical Review B (2011).
  • J. Kouvetakis and R. Roucka. "GeSiSn-based compounds, templates and semiconductor structures". US Patent 8,029,905 B2 (2011).
  • J. Kouvetakis and Y-Y. Fang. "Methods and compositions for preparing Ge/Si semiconductors substrates". US Patent 7,910,468: Part 1 (2011).
  • J. Kouvetakis and Yan-Yan Fang. "Methods and compositions for preparing tensile strained Ge on Ge1-ySny buffered semiconductor substrates". US Patent No. 7,915,104 B1 (2011).
  • J. Kouvetakis, Cole Ritter, J. Tolle. "Hydride compounds with silicon and germanium core atoms and methods of synthesizing the same". US Patent 7,981,392 B2 (2011).
  • Kouvetakis et al. "Methods of making halo-silylgernanes". US Patent 8,043,980 B2 (awarded) (2011).
  • R. Beeler, R. Roucka, A.V.G. Chizmeshya, J. Kouvetakis and J. Menéndez. "Non-linear structure-composition relationships in the Ge1-ySny/Si(100) (y<0.15) system". Physical Review B (2011).
  • R. Roucka, J. Mathews, Chang’e Weng, R.T. Beeler, J. Tolle, J. Menéndez, and J. Kouvetakis. "Development of high performance near IR photodiodes: A novel chemistry -based approach to Ge-Sn devices integrated on silicon". IEEE Journal of Quantum Electronics (2011).
  • R. Roucka, J. Mathews, R.T. Beeler, J. Tolle, J. Kouvetakis, and J. Menendez. "Direct gap electroluminescence from Si/Ge1-ySny p-i-n heterostructure diodes". Applied Physics Letters (2011).
  • R. Roucka, R. Beeler, J. Mathews, Mee-Yi Ryu, Yung Kee Yeo, J. Menéndez, and J. Kouvetakis. "CMOS-compatible detector materials with enhanced 1550 nm responsivity via Sn-doping of Ge/Si(100)". Journal of Applied Physics (2011).
  • R. Roucka, R. Beeler, Liying. Jiang, G. Grzybowski, J. Mathews, J. Kouvetakis, J. Menendez. "Photoluminescence in heavily doped GeSn:P materials grown on Si(100)". Applied Physics Letters (2011).
  • R.T. Beeler, G. Grzbowski, R. Roucka, Liying Jiang, J. Mathews, D.J. Smith J. Menendez and J. Kouvetakis. "Synthesis and materials properties of Sn/P doped "quasi-Ge" on Si(100): photoluminescence and devices". Chemistry of Materials (2011).
  • S. Bagchi, C.D. Poweleit, R.T. Beeler, J. Kouvetakis, and J. Menéndez. "Temperature dependence of the Raman spectrum in Ge1-ySny and Ge1-x-ySixSny alloys". Physical Review B (2011).
  • T. Watkins, A. V.G Chizmeshya, L. Jiang, D. J. Smith, R. Beeler, G. Grzybowski, C. Poweleit, J. Menéndez and J. Kouvetakis. "Nanosynthesis routes to new tetrahedral crystalline solids: Silicon-like Si3AlP". Journal of the American Chemical Society (2011).
  • T. Watkins, L. Jiang, D.J. Smith, A.V.G. Chizmeshya, J. Menendez and J. Kouvetakis. "Designer hydride routes to "Si-Ge"/(Gd,Er)2O3/Si(111) semiconductor-on-insulator heterostructures". Semiconductor Science and Technology (2011).
  • Beeler, Richard; Mathews, Jay; Weng, Chang-E.; Tolle, John; Roucka, Radek; Chizmeshya, A. V. G.; Juday, Reid; Bagchi, Sampriti; Menendez, Jose; Kouvetakis, John. Comparative study of InGaAs integration on bulk Ge and virtual Ge/Si(1 0 0) substrates for low-cost photovoltaic applications. Solar Energy Materials & Solar Cells (2010).
  • Beeler, Richard; Weng, Change; Tolle, John; Roucka, Radek; Mathews, Jay; Ahmari, David A.; Menendez, Jose; Kouvetakis, John. Growth and optical properties of InGaAs via Ge-based virtual substrates: a new chemistry based strategy. ECS Transactions (2010).
  • Chizmeshya, A. V. G.; Kouvetakis, J. Practical strategies for tuning optical, structural and thermal properties in group IV ternary semiconductors. ECS Transactions (2010).
  • D'Costa, V. R.; Fang, Y.-Y.; Tolle, J.; Kouvetakis, J.; Menendez, J. Ternary GeSiSn alloys: New opportunities for strain and band gap engineering using group-IV semiconductors. Thin Solid Films (2010).
  • J. Kouvetakis, I.S.T. Tsong, J. Tolle and R. Roucka. Epitaxial growth of Group III nitrides on silicon substrates via reflective lattice-matched metal boride buffer layers. US patent 7,589,003 (2010).
  • J. Kouvetakis, J. Mathews, R. Roucka, A. V. G. Chizmeshya, J. Tolle, and J. Menéndez. Tuning optical and structural properties of Group IV semiconductors and prototype photonic devices. IEEE Photonics Journal (2010).
  • Kouvetakis, J.; Tolle, J.; Mathews, J.; Roucka, R.; Menendez, J. Si-Ge-Sn technologies: from molecules to materials to prototype devices. ECS Transactions (2010).
  • Mathews, J.; Beeler, R. T.; Tolle, J.; Xu, C.; Roucka, R.; Kouvetakis, J.; Menendez, J. Direct-gap photoluminescence with tunable emission wavelength in Ge1-ySny alloys on silicon. Applied Physics Letters (2010).
  • Mathews, J.; Roucka, R.; Weng, C.; Beeler, R.; Tolle, J.; Menendez, J.; Kouvetakis, J. Near IR photodiodes with tunable absorption edge based on Ge1-ySny alloys integrated on silicon. ECS Transactions (2010).
  • Mathews, Jay; Roucka, Radek; Weng, Change; Tolle, John; Menendez, Jose; Kouvetakis, John. Germanium p-i-n photodiode on silicon for integrated photonic applications. SPIE (Silicon Photonics V) (2010).
  • Roucka, R.; Fang, Y.-Y.; Kouvetakis, J.; Chizmeshya, A. V. G.; Menendez, J. Thermal expansivity of Ge1-ySny alloys. Physical Review B: Condensed Matter and Materials Physics (2010).
  • Tice, J. B.; D'Costa, V. R.; Grzybowski, Gordon; Chizmeshya, A. V. G.; Tolle, J.; Menendez, J.; Kouvetakis, J. Synthesis and Optical Properties of Amorphous Si3N4-xPx Dielectrics and Complementary Insights from ab Initio Structural Simulations. Chemistry of Materials (2010).
  • Tice, Jesse B.; Chizmeshya, A. V. G.; Tolle, J.; D' Costa, V. R.; Menendez, J.; Kouvetakis, J. Practical routes to (SiH3)3P: Applications in Group IV semiconductor activation and in Group III-V molecular synthesis. Dalton Transactions (2010).
  • Weng, C.; Kouvetakis, J.; Chizmeshya, A. V. G. Si-Ge-based Oxynitrides: From Molecules to Solids. Chemistry of Materials (2010).
  • )" Junqi Xie, J. Tolle, V.R. D’Costa, A.V.G. Chizmeshya, J. Menendez and J. Kouvetakis. Direct integration of active Ge1-x(Si4Sn)x semiconductors on Si(100. Applied Physics Letters 95 (2009).
  • ] D'Costa, V. R.; Fang, Y.-Y.; Tolle, J.; Kouvetakis, J.; Menendez, J. Direct absorption edge in GeSiSn alloys. American Institute of Physics, Physics of Semiconductors (2009).
  • D'Costa, Vijay R.; Tolle, John; Xie, Junqi; Menendez, Jose; Kouvetakis, John. Transport properties of doped GeSn alloys. American Institute of Physics, Physics of Semiconductors (2009).
  • J. Kouvetakis, J. Menéndez and J. Tolle. Advanced Si-based semiconductors for energy and photonic applications. Solid State Phenomena (2009).
  • J. Mathews, R. Roucka, J. Xie, S-Q. Yu, J. Menendez, and J. Kouvetakis. Extended performance GeSn/Si(100) p-i-n photodetectors for full spectral range telecommunication applications. Applied Physics Letters 95 (2009).
  • J. Tice, C. Weng, J. Tolle, V.R. D’Costa, A.V.G. Chizmeshya, J. Menendez and J. Kouvetaki. Ether-like Si-Ge hydrides for applications in synthesis of nanostructured semiconductors and Si-Ge-O-N dielectrics. Dalton Transactions (2009).
  • J. Tolle, V. D’Costa, Junqi Xie, A.V.G. Chizmeshya, J. Menendez, and J. Kouvetakis. Invited article: "An in situ molecular approach to nanoscale p- and n-doping of Ge1-xSnx semiconductors: structural, electrical and transport properties",. Solid State Electronics (2009).
  • J. Tolle, V.R. D’Costa, B. Forrest, A.V.G. Chizmeshya, J. Menendez and J. Kouvetakis. Integration of Zn-Cd-Te-Se semiconductors on Si platforms via structurally designed cubic templates based on group IV elements. Chemistry of Materials (2009).
  • J.B. Tice, A.V.G. Chizmeshya, T. L. Groy and J. Kouvetakis. Synthesis and fundamental properties of stable Ph3SnSiH3 and Ph3SnGeH3 hydrides: Model compounds for the design of Si-Ge-Sn photonic alloys. Inorganic Chemistry (2009).
  • S. G. Thomas and M. Bauer, M. Stephens and C. Ritter and J. Kouvetakis. Precursors for Group IV epitaxy for microelectronic and optoelectronic applications. Solid State Technology (2009).
  • V. R. D'Costa, Y.-Y. Fang, J. Tolle, J. Kouvetakis and J. Menendez. Tunable optical gap at a fixed lattice constant in group-IV semiconductor alloys. Physical Review Letters (2009).
  • V. R. D’Costa, Y.-Y. Fang, J. Tolle, J. Kouvetakis, and J. Menéndez. Sn-alloying as a means of increasing the optical absorption of Ge at the C- and L telecommunications bands. Semiconductor Science and Technology (2009).
  • V.R. D’Costa, J. Tolle, J. Xie, J. Kouvetakis and J. Menéndez. Infrared dielectric function of p-type Ge0.98Sn0.02 alloys. Physical Review B (2009).
  • Y-Y Fang, J. Tolle, V. R. D’ Costa, J. Menendez and J. Kouvetakis. Strained metastable structures and selective area epitaxy of Ge-rich Ge1-xSix /Si(100) materials using nanoscale building blocks. Solid State Communications (2009).
  • Y-Y Fang, J. Tolle, V. R. D’ Costa, J. Menendez and J. Kouvetakis. Strained metastable structures and selective area epitaxy of Ge-rich Ge1-xSix /Si(100) materials using nanoscale building blocks. Solid State Communications (2009).
  • Y.Y. Fang, J. Tolle, V.R. D’Costa, A.V.G. Chizmeshya, J. Menendez and J. Kouvetakis. Practical B and P doping via SixSnyGe1-x-y-zMz quaternaries lattice matched to Ge: structural, electrical and strain behavior. Applied Physics Letters (2009).
  • J. Kouvetakis, J. Tolle, V.R. D’Costa, Y.-Y. Fang, A.V.G. Chizmeshya, and J. Menendez. Nanosynthesis of Si-Ge-Sn semiconductors and devices via designer hydride compounds. Electrochemical Transactions (2008).
  • J. Kouvetakis, V.R. D’Costa, Y.-Y. Fang, J. Tolle, A.V.G. Chizmeshya, J. Xie and J. Menéndez. Independently tunable electronic and structural parameters in ternary Group IV semiconductors for optoelectronic applications. Advance Science and Technology of Silicon Materials, 5th International Symposium (2008).
  • Jesse B. Tice, Y-Y Fang, John Tolle, Andrew Chizmeshya and John Kouvetakis. Synthesis and fundamental studies of chlorinated Si-Ge hydride macromolecules for strain engineering and selective-area epitaxial applications. Chemistry of Materials (2008).
  • Jesse Tice, C. J. Ritter, A.V.G Chizmeshya, Brandon Forrest, Levi Torrison, T. L. Groy and J. Kouvetakis. Synthesis and Properties of N3 and CN delivery compounds and related precursors for nitride and ceramic fabrication. Applied Organometallic Chemistry (2008).
  • Po-Liang Liu, A. V. G. Chizmeshya, John Kouvetakis. Structural electronic and energetic properties of SiC(111)/ZrB2(0001) heterojunctions: A first principles DFT study. Physical Review B: Condensed Matter and Materials Physics (2008).
  • R. Roucka, J. Mathews, V. D’Costa, Junqi Xie, J. Tolle, Shui-Qing Yu, J. Menendez, J. Kouvetakis. SnGe photoconductor structures at 1.55 um: From advanced materials to prototype devices. Journal of Vacuum Science and Technology (2008).
  • R. Roucka, V. D’Costa, J. Tolle, A.V.G Chizmeshya, J. Menendez and J. Kouvetakis. Synthesis (Hf,Zr)B2 based heterostructures: hybrid substrate systems for low temperature Al-Ga-N integration with Si. Journal of Materials Chemistry (2008).
  • R. Roucka, V. D’Costa, M. Canonico, A.V.G Chizmeshya, J. Menendez and J. Kouvetakis. Thermoelastic and optical properties of thick boride templates on silicon for nitride integration applications. Chemistry of Materials (2008).
  • R. Roucka, Y.-J. An, A.V.G. Chizmeshya, V.R. D’Costa, J. Tolle , J. Menéndez, and J. Kouvetakis. Structural and optical properties of ZrB2 and HfxZr1-xB2 films grown by vicinal surface epitaxy on Si (111) substrates. Solid State Electronics (2008).
  • Y-Y Fang, J. Xie, J. Tolle, R. Roucka, V. R. D’Costa, A. V.G. Chizmeshya, J. Menendez and J. Kouvetakis. A molecular-based synthetic approach to new group IV materials for high-efficiency, low-cost solar cells and Si-based optoelectronics. Journal of the American Chemical Society (2008).
  • Y.-Y. Fang, V.R. D’Costa, J. Tolle, C.D. Poweleit, J. Kouvetakis, and J. Menéndez. Strained Si films grown by chemical vapor deposition of trisilane on relaxed Ge buffer layers. Thin Solid Films (2008).
  • John Kouvetakis, C. Poweleit, C. -W. Hu, J. Tolle, J. Kouvetakis, I. Tsong. Optical characterization of Si1-xGex nanodots grown on Si substrates via ultrathin SiO2 buffer layers. Journal of Applied Physics (2007).
  • John Kouvetakis, C. Ritter, A. Chizmeshya, J. Kouvetakis. Synthesis of molecular adducts of beryllium, boron, and gallium cyanides. Theoretical and experimental correlations with the solid state and molecular analogs. Chemistry of Materials (2007).
  • John Kouvetakis, Jesse Tice, J. Tolle, A. Chizmeshya, J. Kouvetakis. ClnH6-nSiGe compounds for CMOS compatible semiconductor applications: Synthesis and fundamental studies. Journal of the American Chemical Society (2007).
  • John Kouvetakis, M. Bauer, T. Groy, J. Kouvetakis. Redetermination of tetrakis (Trimethylstannyl)germane. Acta Crystallographica E (2007).
  • John Kouvetakis, R. Soref, J. Kouvetakis, J. Menendez. Advances in SiGeSn/Ge technology. Materials Research Society, (Group IV Semiconductor Nanostructures) (2007).
  • John Kouvetakis, R. Soref, J. Kouvetakis, J. Menendez, J. Tolle, V. D’Costa. Advances in SiGeSn technology (II). Journal of Materials Research (2007).
  • John Kouvetakis, V. D'Costa, C. Poweleit, Jose Menendez, J. Kouvetakis. Compositional dependence of Raman frequencies in ternary Ge1-x-ySixSny alloys. Physical Review B (2007).
  • John Kouvetakis, V. D’Costa, J. Tolle, R. Roucka, J. Kouvetakis, J. Menendez. Raman scattering in Ge1-ySny alloys. Solid State Communications (2007).
  • John Kouvetakis, Y. Fang, J. Tolle, V. D’Costa, J. Menendez, A. Chizmeshya, J. Kouvetakis. Epitaxy driven synthesis of elemental Ge/Si strain-engineered materials and device structures via designer molecular chemistry. Chemistry of Materials (2007).
  • John Tolle, Jose Menendez, Vijay D'Costa, Y Fang, John Kouvetakis. Perfectly tetragonal tensile strained Ge heterostructures on GeSn buffered Si. Applied Physics Letters (2007).
  • M Wistey, Y-Y Fang, J Tolle, John Kouvetakis, A Chizmeshya. A molecular route to Ge/Si(100) structures for low temperature Si-based semiconductor applications. Applied Physics Letters (2007).
  • Radek Roucka, John Tolle, Brandon Forrest, John Kouvetakis, Vijay D'Costa, Jose Menendez. Ge1-ySny/Si(100) composite substrates for growth of InxGa1-xAs and GaAs1-xSbx alloys. Journal of Applied Physics (2007).
  • Kouvetakis, John, Chizmeshya, A. New classes of Si-based photonic materials and device architectures via designer molecular routes. (2007).
  • A Chizmeshya, C Hu, I Tsong, J Menendez, J Tolle, V D'Costa, Y Fang, John Kouvetakis. Low temperature chemical vapor deposition of Si-based compounds via SiH3SiH2SiH3: Metastable SiSn/GeSn/Si(100) heteroepitaxial structures. Applied Physics Letters (2006).
  • A Chizmeshya, C Ritter, J Tolle, C Cook, Jose Menendez, John Kouvetakis. Fundamental Studies of P(GeH3)3, As(GeH3)3, and Sb(GeH3)3: Practical n-Dopants for New Group IV Semiconductors. Chemistry of Materials (2006).
  • John Kouvetakis, J Menendez, Andrew Chizmeshya. Tin-based group IV semiconductors: new platforms for opto- and microelectronics on silicon. Annual Review of Materials Research (2006).
  • John Tolle, Radek Roucka, Vijay D'Costa, Jose Menendez, Andrew Chizmeshya, John Kouvetakis. Compliant tin-based buffers for the growth of defect-free strained heterostructures on silicon. Applied Physics Letters (2006).
  • John Tolle, Radek Roucka, Vijay D'Costa, Jose Menendez, Andrew Chizmeshya, John Kouvetakis. Sn-based group-IV semiconductors on Si: new infrared materials and new templates for mismatched epitaxy. Progress in Semiconductor Materials V--Novel Materials and Electronic and Optoelectronic Applications. Materials Research Society Symposium Proceedings (2006).
  • Radek Roucka, YuJin An, Andrew Chizmeshya, John Tolle, John Kouvetakis, Vijay D'Costa, Jose Menendez, Peter Crozier. Epitaxial semimetallic HfxZr1-xB2 templates for optoelectronic integration on silicon. Applied Physics Letters (2006).
  • Vijay D'Costa, Candi Cook, A Birdwell, Chris Littler, Michael Canonico, Stefan Zollner, John Kouvetakis, Jose Menendez. Optical critical points of thin-film Ge1-ySny alloys: A comparative Ge1-ySny/Ge1-xSix study. Physical Review B (2006).
  • Vijay D'Costa, Candi Cook, José Menéndez, John Tolle, John Kouvetakis, Stefan Zollner. Transferability of optical bowing parameters between binary and ternary Group-IV alloys. Solid Sate Communications (2006).
  • Zhi-Tao Wang, Y Yamada-Takamura, Y Fujikawa, T Sakurai, J Tolle, John Kouvetakis. Effect of nitridation on the growth of GaN on ZrB2(0001)/Si(111) by molecular beam epitaxy. Journal of Applied Physics (2006).
  • Kouvetakis, John, Menedez, Jose. Sn-based Group-IV Semiconductors: A new Platform for Opto- and Microelectronics on Si. (2006).
  • C Cook, V D'Costa, John Kouvetakis, S Zollner, J Menendez. Compositional dependence of critical point energies in Ge1-xSnx alloys Physics of Semiconductors. Physics of Semiconductors (2005).
  • C Hu, Cole Ritter, I Tsong, J Menéndez, J Tolle, Andrew Chizmeshya, John Kouvetakis. Low-temperature pathways to Ge-rich Si1-xGex alloys via single-source hydride chemistry. Applied Physics Letters (2005).
  • C Hu, J Tolle, P Crozier, I S Tsong, J Menendez, John Kouvetakis. Synthesis of Si-Ge nanoscale structures via deposition of single source SiHx(GeH3)4-x hydrides 080131 (2005). Applied Physics Letters (2005).
  • C Ritter, C Hu, A Chizmeshya, J Tolle, D Klewer, I S Tsong, John Kouvetakis. Synthesis and fundamental studies of (H3Ge)xSiH4-x molecules: Precursors to semiconductor hetero- and nano- structures on Si. Journal of the American Chemical Society (2005).
  • J Tolle, John Kouvetakis, D Kim, S Mahajan, A Chizmeshya, C Hu, A Bell, F Ponce, I Tsong. Epitaxial growth of ZrB2(0001) on Si(111) for III nitride applications: A review. Chinese Journal of Physics (2005).
  • P Liu, A Chizmeshya, John Kouvetakis, I Tsong. First-Principles Studies of GaN(0001) Heteroepitaxy on ZrB2(0001). Physical Review, B (2005).
  • R Roucka, J Tolle, Andrew Chizmeshya, Ignatius Tsong, John Kouvetakis. Epitaxial film growth of zirconium diboride on Si(001). Journal of Crystal Growth (2005).
  • R Roucka, J Tolle, C Cook, Andrew Chizmeshya, John Kouvetakis, V D'Costa, J Menendez, Zhihao Chen, S Zollner. Versatile buffer layer architectures based on Ge1-xSnx alloys. Applied Physics Letters (2005).
  • R Trivedi, J Tolle, Andrew Chizmeshya, R Roucka, Cole Ritter, John Kouvetakis, Ignatius Tsong. Low-temperature GaN growth on silicon substrates by single gas-source epitaxy and photo-excitation. Applied Physics Letters (2005).
  • Rahul Trivedi, Po-Liang Liu, Radek Roucka, John Tolle, Andrew Chizmeshya, Ignatius Tsong, John Kouvetakis. Mismatched Heteroepitaxy of Tetrahedral Semiconductors with Si via ZrB2 Templates. Chemistry of Materials (2005).
  • Z Wang, Ignatius Tsong, Y Yamada-Takamura, Y Fujikawa, T Sakurai, Q Xue, J Tolle, P Liu, A Chizmeshya, John Kouvetakis. Surface and interface studies of GaN epitaxy on Si(111) via ZrB2 buffer layers. Physical Review Letters (2005).
  • C Hu, A Chizmeshya, J Tolle, John Kouvetakis, Ignatius Tsong. Nucleation and growth of epitaxial ZrB2(0001) on Si(111). Journal of Crystal Growth (2004).
  • Candi Cook, Stefan Zollner, Matthew Bauer, Pavan Aella, John Kouvetakis, Jose Menendez. Optical constants and interband transitions of Ge1-xSnx alloys (x<0.2) grown on Si by UHV-CVD. Thin Solid Films (2004).
  • J Menendez, John Kouvetakis. Type-I Ge/Ge 1-x-y Si xSny strained-layer heterostructures with a direct Ge band gap. Applied Physics Letters (2004).
  • J Tolle, D Kim, S Mahajan, A Bell, F Ponce, M Kottke, John Kouvetakis, I Tsong. Epitaxial growth of AlGaN by metalorganic chemical vapor deposition on Si(111) via a ZrB2(0001) buffer layer. Appl. Phys. Letters (2004).
  • P Crozier, Cole Ritter, J Tolle, John Kouvetakis. Synthesis of uniform GaN quantum dot arrays via electron nanolithography of D2GaN3. Applied Physics Letters (2004).
  • Pavan Aella, C Cook, J Tolle, S Zollner, A Chizmeshya, John Kouvetakis. Structural and optical properties of SnxSiyGe1-x-y alloys. Applied Physics Letters (2004).
  • Shiu Fai Li, Matthew Bauer, Jose Menendez, John Kouvetakis. Scaling law for the compositional dependence of Raman frequencies in GeSi and SnGe alloys. Appl. Phys. Lett (2004).
  • A Chizmeshya, M Bauer, John Kouvetakis. Experimental and theoretical study of deviations from Vegards Law in the Ge1-xSnx system. Chemistry of Materials (2003).
  • C Hu, J Taraci, J Tolle, M Bauer, P Crozier, I S Tsong, John Kouvetakis. Synthesis of highly coherent SiGe and Si4Ge nanostructures by single-source molecular beam epitaxy of H3SiGeH3 and Ge(SiH3)4. Chemistry of Materials (2003).
  • J Tolle, R Roucka, Ignatius Tsong, Andrew Chizmeshya, John Kouvetakis. Epitaxial growth of group III nitrides on silicon substrates via a reflective lattice-matched zirconium diboride buffer layer. Applied Physics Letters (2003).
  • L Torrison, J Tolle, John Kouvetakis, S Dey, D Gu, I Tsong, Peter Crozier. Synthesis of Stoichiometric and Non-Stoichiometric Films in the Si-O-N System: Mechanical, Electrical and Dielectric Properties. Materials Science and Engineering B, Solid State Materials for Advance Technology (2003).
  • Levi Torrison, John Tolle, I S Tsong, John Kouvetakis. Growth and optical properties of epitaxial GaN on Si via AlN buffer layers using single gas-source MBE. Thin Solid Films (2003).
  • M Bauer, C Ritter, Peter Crozier, J Menendez, J Ren, John Kouvetakis. Synthesis of Ternary Si-Ge-Sn Semiconductors on Si(100) via SnxGe1-x Buffer Layers. Applied Physics Letters (2003).
  • Matthew Bauer, D Smith, A Chizmeshya, Jose Menendez, John Kouvetakis. Tunable bandstructure in diamond cubic tin-germanium alloys grown on silicon substrates. Solid State Communications (2003).
  • Matthew Bauer, Peter Crozier, A Chizmeshya, J Smith, S Zollner, John Kouvetakis. GeSn superstructured materials for Si-based optoelectronic technology. Applied Physics Letters (2003).
  • R Roucka, J Tolle, A Chismeshya, P Crozier, C Poweleit, D Smith, John Kouvetakis, I S Tsong. The pseudo-binary wide bandgap semiconductor SiCAlN. Applied Surface Science (2003).
  • Bauer, M, Tolle, J, Chizmeshya, A, Zollner, S, Menendez, J, Kouvetakis, John. New Ge-Sn materials with adjustable bandgaps and lattice constants. (2003).
  • C Ritter, M Williams, T Groy, John Kouvetakis. Reactions of aluminum and gallium hydrides with Me3SiN=C=NSiMe3. Synthesis and structures of the sterically crowded Al[(SiMe3)NCHN(SiMe3)]3 and Ga[(SiMe3)NCHN(SiMe3)]3. Inorg. Chem (2002).
  • Cole Ritter, T Groy, John Kouvetakis. Synthesis and structure of trans-Tetrabromobis(dimethylamine). Acta Cryst (2002).
  • J Tolle, Radek Roucka, I Tsong, P Crozier, A Chizmeshya, John Kouvetakis. Growth of SiCAlN on Si (111) via crystalline oxide interfaces. Applied Physics Letters (2002).
  • Jennifer Taraci, John Kouvetakis, S Zollner, M Mc Cartney, Jose Menendez, D Smith, John Tolle, M Bauer, Erika Duda, N Edwards. Optical Vibrational and Structural Properties of Ge1-xSn x alloys by UHV-CVD. Mat. Res. Soc. Symp. Proc (2002).
  • Levi Torrison, J Tolle, David Smith, Jose Menendez, C Poweleit, John Kouvetakis. Morphological and optical properties of Si nanostructures imbedded in SiO2 and Si3N4 films grown by single source CVD. Journal of Applied Physics (2002).
  • M Bauer, J Taraci, J Tolle, A Chizmeshya, S Zollner, J Menendez, D Smith, John Kouvetakis. Ge1-xSnx semiconductors for bandgap and lattice engineering. Applied Physics Letters (2002).
  • M Bauer, T Groy, John Kouvetakis. Crystal structure of Tin tetrabromodioxane, SnBr4.(C4H8O2), a one dimensional polymer of Sn (IV). Zeit. Kristallogr (2002).
  • Radek Roucka, J Tolle, I Tsong, P Crozier, A Chismashya, D Smith, I Tsong, John Kouvetakis. Low-temperature epitaxial growth of the quaternary wide bandgap semiconductors SiCAlN. Phys. Rev. Lett (2002).
  • Kouvetakis, John (Author) ,Mayer, J W (Author) . Synthesis and analysis of compounds and alloys in the Ge-C, Si-C, and Si-Ge-C systems. Silicon-Germanium-Carbon Alloys, Growth Properties and Applications, Optoelectronic Properties of Semiconductors and Superlattices (2002).
  • . Novel synthetic pathways to wide bandgap semiconductors in the Si-C-Al-N system. (2002).
  • D Smith, M Todd, Jeff McMurran, John Kouvetakis. Structural properties of heteroepitaxial germanium carbon alloys grown on (100) Si. Philosophical Magazine A (2001).
  • Darrick Williams, B Pleune, C Leinenweber, John Kouvetakis. Synthesis and structural properties of stoichiometric framework C-N compounds of Be, Mg, Al, and Tl. J. of Solid State Chem (2001).
  • J Nielsen, J Pelz, C Hu, H Hibino, I Tsong, John Kouvetakis. Controlled striped phase formation on ultra-flat Si(001) surfaces during diborane exposure. Applied Physics Letters (2001).
  • Jennifer Taraci, John Tolle, M Mc Cartney, Jose Menendez, M Santana, D Smith, John Kouvetakis. Simple chemical routes to diamond-cubic germanium-tin alloys. Appl. Phys. Lett (2001).
  • Jennifer Taraci, M Mc Cartney, Jose Menendez, S Zollner, D Smith, Arne Haaland, John Kouvetakis. Synthesis of Si-based Infrared Semiconductors in the Ge-Sn System Using Molecular Chemistry Methods. Journal of the American Chemical Society (2001).
  • John Kouvetakis, Cory Steffek, Levi Torrison, Jeff McMurran, J Hubbard. Synthesis of new azidoalanes with heterocyclic molecular structures. Main Group Metal Chemistry (2001).
  • L Torrison, John Kouvetakis, T Groy. Structure of dichlorodeuteroalane (bis)-trimethylamine. Zeit. Kristallogr (2001).
  • M Chirita, R Sooryakumar, H Xia, John Tolle, D Smith, John Kouvetakis, I Tsong. Synthesis and elastic properties of nanocrystalline Zr-B-Si thin films. Journal of Applied Physics (2001).
  • Radek Roucka, J Tolle, I Tsong, D Smith, John Kouvetakis. Low temperature synthesis of high-hardness SiCNAl alloys via interactions of H3SiCN with Al atomic beams. Applied Physics Letters (2001).
  • Cory Steffek, Jeff McMurran, Brett Pleune, T Concolino, A Rheingold, John Kouvetakis. Synthesis of Cl2InN3, Br2InN3 and related adducts. Inorg. Chem (2000).
  • Darrick Williams, B Pleune, M Williams, R Andersen, John Kouvetakis. Synthesis of LiBC4N4, BC3N3 and related C-N compounds of boron. New precursors to light element ceramics. J. Am. Chem. Soc (2000).
  • John Kouvetakis, Cory Steffek, Jeff McMurran, J Hubbard. Synthesis and structures of heterocyclic azidogallanes [(CH3)ClGaN3]4 and [(CH3)BrGaN3]3 in route to (CH3)HGaN3: An inorganic precursor to GaN. Inorg Chem (2000).
  • John Kouvetakis, T Groy. A novel precursor to C-N materials: 2,4,6-tris[2,(trmethyl)ethynyl]-1,3,5-triazene. Acta Cryst (2000).
  • John Kouvetakis, T Groy. The centrosymetric dimer of dichloro (trimethylsiloxyl) aluminum. Acta Cryst C (2000).
  • . . Review of: Surface preparation of SiC and Al2O3 substrates for MBE and MOCVD deposition of AlN, GaN, and InAlGaN (2000).
  • J. Menendez, C L Senaratne, P M Wallace, C Xu, J D Gallagher, John Kouvetakis.  Materials physics of GeSn-based semiconductor lasers.  Materials Today (2019).
  • C Xu, John Kouvetakis, J Menendez.  Doping dependence of the optical dielectric function in n-type Germanium.  Journal of Applied Physics (2019).
  • Buguo Wang, Tom Harris, M R Hogsed, Y K Yeo, Mee-Yi Ryu, John Kouvetakis.  Direct/indirect bandgap emissions of Ge1-x-ySixSny grown on Ge buffered Si.  Thin Solid Films (2019).
  • Chi Xu, P M Wallace, D A Ringwala, J Menéndez, John Kouvetakis.  Fabrication of Ge:Ga hyper-doped materials and devices using CMOS compatible Ga and Ge hydride chemistries.  ACS Applied Materials and Interfaces (2018).
  • Hyun-Jun Jo, Jong Su Kim, Mee-Yi Ryu, Yung Kee Yeo, John Kouvetakis.  Investigation of hydrogen inductively coupled plasma treatment effect for Ge0.938Sn0.062/Ge/Si film using photoreflectance spectroscopy.  Thin Solid Films (2018).
  • Buguo Wang, Z-Q Fang, Bruce Claflin, David Look, John Kouvetakis, Yung Kee Yeo.  Electrical characterization and deep-level transient spectroscopy of Ge0.873Si0.104Sn0.023 photodiode grown on Ge platform by UHV-CVD.  Thin Solid Films (2018).
  • Mee-Yi Ryu, T R Harris, Buguo Wang, Yung Kee Yeo, M R Hogsed, John Kouvetakis.  Temperature-dependent photoluminescence studies of Ge1-ySny (y=4.3%&#61485;9.0%) grown on Ge-buffered Si; indicating direct bandgap cross-over point.  Current Applied Physics (2018).
  • Buguo Wang, M R Hogsed, T R Harris, Patrick M Wallace, John Kouvetakis.  Enhanced optical and electrical performance of Ge1-xSnx/Ge/Si(100) (x=0.062) alloys via inductively coupled H2 plasma treatments.  Semiconductor Science and Technology (2018).
Research Activity: 
Spring 2020
Course NumberCourse Title
CHM 471Solid-State Chemistry
CHM 571Struct, Bond, Symmetry in Mtls
Fall 2019
Course NumberCourse Title
CHM 453Inorganic Chemistry
CHM 501Current Topics in Chemistry
Spring 2019
Course NumberCourse Title
CHM 471Solid-State Chemistry
CHM 571Struct, Bond, Symmetry in Mtls
Fall 2018
Course NumberCourse Title
CHM 453Inorganic Chemistry
CHM 553Advanced Inorganic Chemistry
Spring 2018
Course NumberCourse Title
CHM 471Solid-State Chemistry
CHM 571Struct, Bond, Symmetry in Mtls
Fall 2017
Course NumberCourse Title
CHM 453Inorganic Chemistry
CHM 501Current Topics in Chemistry
Spring 2017
Course NumberCourse Title
CHM 471Solid-State Chemistry
CHM 571Struct, Bond, Symmetry in Mtls
Fall 2016
Course NumberCourse Title
CHM 114General Chemistry for Engrs
Spring 2016
Course NumberCourse Title
CHM 471Solid-State Chemistry
CHM 571Struct, Bond, Symmetry in Mtls
Fall 2015
Course NumberCourse Title
CHM 114General Chemistry for Engrs
Presentations: 
  • B. Claflin, A. M. Kiefer, R. T. Beeler, G. Grzybowski, J. Menéndez, and J. Kouvetakis. Characterization of Ge1-x-ySixSny ternary alloys – comparison of CVD and MBE growth. Electrochemical Society Conference, October 2014, Cancun Mexico (Oct 2014).
  • J. Kouvetakis. Development of Si-Ge-Sn semiconductors and related (Si)5-2y(III-V)y systems. Nanoscience seminar Arizona State University (Sep 2014).
  • T. Aoki, L. Jiang, A. V. G. Chizmeshya, J. Menéndez, J. Kouvetakis and David J. Smith. Structure and Bonding in AlPSi3 Alloys Grown Lattice-matched on Si(001). Microscopy Conference August 6, 2014 (Aug 2014).
  • L. Jiang, T. Aoki, J. Kouvetakis, and J. Menéndez. EELS study of Ge1-ySny and Ge1-x-ySixSny alloys. Microscopy and Microanalysis Conference, August 5, 2014 (Aug 2014).
  • Jose Menendez, J. Kouvetakis et al. Group IV semiconductors with Sn: band gap studies and optical properties. ICPS International conference physics of semiconductors Austin Texas Wednesday, August 13 (Aug 2014).
  • Patrick Sims, Liying Jiang, Toshiro Aoki, Andrew Chizmeshya, John Kouvetakis, Jose Menendez. A New Class of III-V/Group-IV Semiconductor Alloys Based on Molecular Building Blocks with Bulk Crystal Stoichiometry. ICPS International conference physics of semiconductors Austin Texas Wednesday, August 12, 2014 (Aug 2014).
  • J. Kouvetakis. Epitaxy and optical properties of Si-Ge-Sn grown by CVD of nonconventional Si/Ge/Sn hydrides. International Si-Ge technology and device meeting June 4, 2014 Singapore (Jun 2014).
  • Chi Xu, Charutha L. Senaratne, John Kouvetakis, and José Menéndez. Compositional dependence of optical interband transition energies in GeSn and GeSiSn alloys. ISTDM International Si-Ge technology and device meeting (ISTDM) June 4, 2014 Singapore (Jun 2014).
  • Sachit Crover, Patrick Sims, S. Choi, Graig Perkins, Jian V. Li, Andrew Norman, J. Kouvetakis, Paul Strandis and David Young. Optoelectronic characterization of Si3AlP and applications. Spring Meeting Materials Research Society San Francisco (May 2014).
  • J. Kouvetakis. Si based semiconductors in the SiGeSn system and (Si)5-2y(III-V)y analogs. Spring Meeting Materials Research Society San Francisco (May 2014).
  • James Gallagher, Charutha Senaratne, Chi Xu, Dough Bopp, J. Kouvetakis and J. Menendez. Electronic structure of Ge1-ySny and Ge1-x-ySixSny alloys from optical and electro-optical measurements. American Physical Society March Meeting Denver Co March 4, 2014 (Mar 2014).
  • L.Jiang, T. Aoki, J. Kouvetakis,. EELS studies of novel semiconductor alloys Ge1-x-ySixSny and AlPSi3. American Physical Society March Meeting Denver Co March 4, 2014 (Mar 2014).
  • A.V.G. Chizmeshya and J. Kouvetakis. Structural and thermochemical aspects of (III-V)IV3 material assembly form first principles. American Physical Society March Meeting Denver Co March 6, 2014 (Mar 2014).
  • Jose menendez, Patrick Sims, Liying Jiang and J. Kouvetakis. Optical and structural properties of III-V)x(IV)5-2x alloys. American Physical Society March Meeting Denver Co March 5, 2014 (Mar 2014).
  • J. Kouvetakis. Session Chair for Session T45: Semiconductors: Thermodynamic & Transport Properties II. American Physical Society March Meeting Denver Co March 5, 2014 (Mar 2014).
  • A. Ghosh, N. Fernando, A.A. Medina, C.M. Nelson, S. Zollner, S.C. Xu , J. Menendez, J. Kouvetakis. Strain measurements of Ge epilayers on Si by Spectroscopic Ellipsometry. American Physical Society March Meeting Denver Co March 4, 2014 (Mar 2014).
  • J. Kouvetakis. Synthesis and properties of Si-Ge-Sn materials and devices grown by CVD. 8th International Conference on Silicon Epitaxy and Heterostructures (ICSI -8) Fukuoka Japan (Jun 2013).
  • J, Kouvetakis and R.T. Beeler. Synthesis and properties of Si-Ge-Sn materials and devices grown by CVD. Photovoltaic Conference (SEMI 2013 Solaron) Shanghai China (Mar 2013).
  • Thomas Harris Yung Kee Yeo, R. Beeler, Mee Yi Ryu and J. Kouvetakis. Electrical properties of p-Ge and p-GeSn materials grown on Si substrates. American Physical Society Spring Meeting (Mar 2013).
  • J. Kouvetakis. Optical properties of next generation Si-Ge-Sn materials and prototype devices. International Photonics and Optolectronics Meeting, Wuhan University, China (Nov 2012).
  • R. Beeler, J. Menendez, and J. Kouvetakis. Ge1-x-ySixSny photodiodes with 1 eV optical gaps grown on Si(100) and Ge(100) platforms. Electrochemical Society National Meeting Hawaii (Oct 2012).
  • A. Chizmeshya, J. Kouvetakis et al. Synthesis of monocrystalline silicon-like (III-V)-Si semiconductors: structural and optical properties. Electrochemical Society National Meeting Hawaii (Oct 2012).
  • G. Grzybowski, J. Kouvetakis, et al. GeSn alloys on Si using deuterated stananne and higher-order germanes: Synthesis and properties. Electrochemical Society National Meeting Hawaii (Oct 2012).
  • J. Kouvetakis and R.T. Beeler. SiGeSn photodiodes with tunable band gaps integrated directly on Si and Ge platforms. European Conference and Exhibition on Optical Communication, Amsterdam (Sep 2012).
  • Mo Ahoujja, S. Kang, M Hamilton, Y.K. Yeo, J. Kouvetakis, J. Menendez. Electrical characterization of SiGeSn grown on Ge substrate using ultra high vacuum chemical vapor deposition. American Physical Society March Meeting 2012 (Feb 2012).
  • J. Kouvetakis, R. Beeler. Photoluminescence and electroluminescence in Ge1-ySny(100) alloys. IEEE Photonics (Sep 2011).
  • Mo Ahoujja , S. Elhamri , J. Kouvetakis , J. Tolle , Mee Yi Ryu , Y.K. Yeo. Electrical characterization of GeSn grown on Si using ultra high vacuum chemical vapor deposition method. Physical Society Meeting (Mar 2011).
  • J. Kouvetakis. Optical properties and device performance of SiGeSn on Si. AFOSR Nanophotonics & Quantum Computing Program, Boston (Dec 2010).
  • J. Kouvetakis. Silicon on Gd2O3 buffered Si(111) for silicon on insulator applications. Translucent Inc visit (Nov 2010).
  • J. Kouvetakis. Advances in SiGeSn/Si Technologies. Air-Force Institute of Technology, Wright Patterson Air Force Base (Oct 2010).
  • Mathews, J.; Kouvetakis,et al. Near IR photodiodes based on Ge1-ySny alloys. Electrochemical Society meeting Las Vegas (Oct 2010).
  • Kouvetakis, J. Practical strategies for tuning optical, structural and thermal properties in group IV ternary semiconductors. Electrochemical Society meeting, Las Vegas Nevada (Oct 2010).
  • Kouvetakis, J.; Tolle, J.; Mathews, J.; Roucka, R.; Menendez, J. Si-Ge-Sn technologies. Electrochemical Society Meeting, Las Vegas Nevada (Oct 2010).
  • Beeler, Richard; Weng, Change; Tolle, John; Roucka, Radek; Mathews, Jay; Ahmari, David A.; Menendez, Jose; Kouvetakis, John. Growth of InGaAs via Ge-based virtual substrates. Electrochemical Society Meeting, Las Vegas Nevada (Oct 2010).
  • J. Kouvetakis. Advances in SiGeSn/Si Technology: from Molecules and Materials to Prototype Devices. Gordon Research Conference in Solid State Chemistry (Aug 2010).
  • J. Kouvetakis. Advances in SiGeSn/Si Technologies: form molecules and Materials to prototype devices. University of Washington, Materials Science and Engineering (May 2010).
  • J. Kouvetakis and Radek Roucka. Advanced Semiconductor Materials for Breakthrough Photovoltaic Applications. DOE Solar Program Washington DC (May 2010).
  • Mathews: Menendez, Jose; Kouvetakis, John et al. Germanium p-i-n photodiode on silicon. Photonics West 2010 (Jan 2010).
  • J. Kouvetakis/ R. Roucka. GeSn Growth and Prototype Device Processing. MIT, AFOSR Review of Silicon-Based Photonic Technologies (Nov 2009).
  • J. Kouvetakis, R. Roucka. Recent Advances in Si-Ge-Sn/Si Materials. IEEE Photonics, Anatalia, Turkey (Oct 2009).
  • J. Mathews, J. Kouvetakis, et. al. Ge and GeSn Materials for Integrated Photonics. APS Four Corners 2009, Colorado School of Mines, Golden, CO (Oct 2009).
  • J. Matthews, R. Roucka, J. Kouvetakis. GeSn Photodiodes. Interconnect Focus Center, Georgia Tech, Atlanta (Sep 2009).
  • J. Kouvetakis. Advanced Si-based Semiconductors for energy and photonic application. Gadest 2009. Templin, Germany (Sep 2009).
  • J. Kouvetakis. Advanced Semiconductors for Photovoltaics. DOE Review on Solar Technologies (Mar 2009).
  • J. Kouvetakis. Independently tunable electronic and structural parameters in ternary Group IV semiconductors for optoelectronic applications. The 5th international symposium on advanced science and technology of silicon materials (Nov 2008).
  • J. Kouvetakis. Independently tunable electronic and structural parameters in ternary Group IV semiconductors for optoelectronic applications. Arizona workshop on renewable energy (Nov 2008).
  • J. Kouvetakis. Recent Progress in Si-Ge-Sn materials science. AFOSR MURI programs, MIT, Cambridge MA (Nov 2008).
  • Radek Roucka and J. kouvetakis. Optical materials and devices based on group IV alloys containing Sn. Symposium for Interconnect Focus Group at Georgia Tech (Oct 2008).
  • J. Kouvetakis. Epitaxial Si-Ge-Sn materials for Si-based optoelectronic applications. ECS Pacific Rim Meeting, Honolulu Hawaii (Oct 2008).
  • Vijay R. D’Costa, John Tolle, Junqi Xie, José Menéndez, and John Kouvetakis. Group-IV semiconductors incorporating Sn. 29th International Conference on the physics of semiconductors, Rio de Janeiro, Brazil (Aug 2008).
  • Vijay R. D’Costa, John Tolle, Junqi Xie, José Menéndez, and John Kouvetakis. Transport properties of doped GeSn alloys. 29th International Conference on the physics of semiconductors, Rio de Janeiro, Brazil (Jul 2008).
  • J. Kouvetakis. Recent advances in Si-Ge-Sn/Si materials. ISTDM Symposium, Taiwan (May 2008).
  • J. Kouvetakis. Recent advances in SiGeSn/Si materials. California Institute of Technology, Department of Materials Science (May 2008).
  • J. Kouvetakis. Sn-based group IV semiconductors: New platforms for opto- and microelectronics on silicon. University of Southern California (USC), Chemistry Department (Feb 2008).
  • J. Kouvetakis. Advances in SiGeSn/Ge technology. IFC meeting Stanford University (Feb 2008).
  • Kouvetakis, John. Si-Ge-Sn based modulators and photodetectors. Intel Corporation Santa Clara (Aug 2006).
  • Kouvetakis, John. Sn containing gorup IV semiconductors; New platforms for optelectronic integration with Si. International conference on Compound Semiconductors/Vancouver CANADA (Aug 2006).
  • Soref, R, Kouvetakis, John, Menendez, Jose. New IR technologies based on SiGeSn. Materials Research Society Meetting/ Boston (Aug 2006).
  • Kouvetakis, John. New molecular routes to materials synthesis. Voltaix Corporation (Jun 2006).
  • Kouvetakis, John. SiGeSn Semiconductors. Voltaix Corporation (Jun 2006).
  • D'Costa, Vijay, Menendez, Jose, Tolle, J, Kouvetakis, John. Structural, Vibrational, and Electronic Properties of Ternary SiGeSn Alloys. National Meeting of the American Physical Society (Mar 2006).
  • Yamada-Takamura, Yukiko, Wang, Z, Fujikawa, Y, Xue, Q, Sakurai, T, Tsong, I, Kouvetakis, John, Tolle, J. Surface and interface studies of GaN growth on ZrB2/(0001)/Si(111). National Meeting of the American Physical Society (Mar 2006).
  • Kouvetakis, John. Sn-based Group-IV Semiconductors: A new Platform for Opto- and Microelectronics on Si. Gordon Research Conference: Chemistry of electronic materials (Jul 2005).
  • Menendez, J, Kouvetakis, John. Sn-based group-IV semiconductors on Si: New infrared materials and new templates for mismatched epitaxy. Materials Research Society Meeting (Jun 2005).
  • D'Costa, V, Menendez, J, Kouvetakis, John. Bowing in the compoisitional dependence of optical transitions in GeSn alloys. American Physical Society Meeting (Mar 2005).
  • Kouvetakis, John. Synthesis of IR and UV optical materials using molecular chemistry. Institute of Phyics, Academia Sinica (Oct 2004).
  • Kouvetakis, John, Tolle, J. New IR Semiconductors in the Si-Ge-Sn System. Symposium on Infrared Materials and Technologies (Sep 2004).
  • Kouvetakis, John. IR semiconductors in the Si-Ge-Sn System. Fisrt international silicon photonics conference (Sep 2004).
  • Kouvetakis, John. Synthesis of IR and UV optical materials. Institute of atomic and molecular science (Academia Sinica) (Sep 2004).
  • Cook, Candi, Tolle, J, Kouvetakis, John, Menendez, J. Investigation of critical point transitions in SnGe alloys using photoreflectance and spectroscopic ellipsometry. International conference in phyiscs of semiconductors (Jun 2004).
  • Crozier, P, Tolle, J, Kouvetakis, John, Ritter, Cole. Synthesis of Uniform GaN Quantum Dot Arrays via Electron Nanolithography of D2GaN3. Microscopy Society of America Meeting (Apr 2004).
  • Cook, Candi, Menendez, Jose, Zollner, Stefan, Chizmeshya, A, Tolle, John, Kouvetakis, John. Evaluation of the electronic band structure of a new semiconductor ternary using Si, Ge and Sn. Annual American Physical Society March Meeting (Mar 2004).
  • Kouvetakis, John, Babor, P., Potocek, M., Voborny, S., Polcak, J., Prusa, S., Kolibal, M., Spousta, J., Dittrichova, L., Sobota, J., Bochnicek, Z., Roucka, R., Kouvetakis, J., Sikola, T. Depth profiling of Mo/Si multi-nano-layers by DSIMS and HRTEM.
Service: 
  • NSF site visit to Center for Sustainable Materials Chemistry, Portland Oregon, site visit panel member to evaluate the Center for University of Oregon, Oregon State, Washington U, Rutgers U etc. (2013 - Present)
  • Journal of The Electrochemical Society, Associate Editor (2009 - Present)
  • Budget & Personnel Committee, Member (2008 - Present)
  • Undergraduate Programs Committee, Member (2008 - Present)
  • Facilities committe, member (2007 - Present)
  • Personnel Committee, member (2007 - Present)
  • JACS, Chemistry of Materials etc, Referee (2007 - Present)
  • National Science Foundation, Proposal reviewer (2007 - Present)
  • Graduate Programs Committee, member (2014 - 2014)
  • IEEE, Electrochemical Society, American Chemical Society,AIP journals., reviewer (2014 - 2014)
  • seminar committee, member (2014 - 2014)
  • Graduate Programs Committee, member (2013 - 2014)
  • Chemistry of Materials and other various journals, reviewer (2013 - 2013)
  • Seminar Committee, member (2013 - 2013)
  • Graduate Programs Committee, member (2012 - 2012)
  • Seminar Committee, member (2012 - 2012)
  • Graduate Programs Committee, member (2011 - 2012)
  • Seminar Committee, member (2011 - 2012)
  • Chemistry of Materials (an American Chemical Society Journal), editorial advisory board (2004 - 2011)
  • Seminar committee, member (2010 - 2010)
  • Journal of the Electrochemical Society, Associate Editor (2009 - 2010)
  • Undergraduate Programs Committee, member (2010 - 2010)
  • Chemistry of Materials (an American Chemical Society Journal) editorial advisory board, editorial advisory board (2005 - 2007)
  • Si-based photonics mini symposium at ASU jointly with AFOSR (co organizer), co-organizer (2006 - 2007)
  • Personnel committee, member (2006 - 2007)
  • DOE, DoD, NSF etc, proposal reviewer (2006 - 2007)
  • JACS,Chem Mater, Applied Phys. Lett. ect, reviewer (2006 - 2007)
  • AzTe, Participated on behalf of the University (including travel and meetings) for commercialization of intellectual property (2006 - 2006)
  • Faculty advisor: Ion beam facility (Center for Solid State Science), Chair (2005 - 2006)
  • Faculty advisor x-ray facility, Chair (2003 - 2006)
  • Ion beam facility, Center for Solid State Science, Supervisory committee chair (2006 - 2006)
  • Spring 2006 sabbatical: No service, no service sabbatical (2006 - 2006)
  • Facilities committee, Chair (2004 - 2005)
  • Facilities committee, member (2005 - 2005)
  • Facilities committee, Chair/Member (2003)
  • Inorganic-Solid Stete faculty search committee, Chair (2003)
  • Inorganic Chemistry (An American Chemical Society Journal), Editorial Board (2000 - 2002)
Expertise Areas: 
Inorganic and Materials Chemistry
Solid State Physics
Semiconductors