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Journal Papers (refereed)
2017
R. Green, M. Toporkov, M. B. Ullah, V. Avrutin, Ü. Özgür, H. Morkoç, E. Topsakal
"An alternative material for transparent antennas for commercial and medical applications"
Microw. Opt. Technol. Lett. 59, 773–777 (2017)
2016
M. A. Reshchikov, J. D. McNamara, M. Toporkov, V. Avrutin, H. Morkoç, A. Usikov, H. Helava and Yu. Makarov,
"Determination of the electron-capture coefficients and the concentration of free electrons in GaN from time-resolved photoluminescence"
Sci Rep. 2016; 6: 37511.
2016
Md Ullah, Vitaliy Avrutin, Si Qian Li, Saikat Das, Morteza Monavarian, Mykyta Toporkov, Ümit Özgür, Pierre Ruterana, Hadis Morkoç
"Polarity control and residual strain in ZnO epilayers grown by molecular beam epitaxy on (0001) GaN/sapphire"
Phys. Status Solidi RRL, 1–5 (2016)
2016
M. Toporkov, D. Demchenko, Z. Zolnai, J. Volk, V. Avrutin H. Morkoç, and Ü. Özgür,
"Lattice parameters and electronic structure of BeMgZnO quaternary solid solutions: experiment and theory"
Journal of Applied Physics, 119, pp.095311
2015
Sermuksnis, J. Liberis, M. Ramonas, A. Matulionis, M. Toporkov, H. Liu, V. Avrutin, Ü. Özgür, H. Morkoç,
"Hot-electron energy relaxation time in Ga-doped ZnO films"
J. Appl. Phys., 117, 065704 (2015)
2015
Sermuksnis, J. Liberis, A. Matulionis, M. Toporkov, V. Avrutin, U. Ozgur, H. Morkoc,
"Hot-electron noise and energy relaxation in wurtzite ZnO"
Int. Conf. Noise Fluct. ICNF, pp. 1-4 (2015)
2015
Zolnai, M. Toporkov, J. Volk, D. Demchenko, S. Okur, Z. Szabó, Ü. Özgür, H. Morkoç, V. Avrutin, E. Kótai,
"Nondestructive atomic compositional analysis of BeMgZnO quaternary alloys using ion beam analytical techniques"
Appl. Surf. Sci. 327, 43 (2015)
2014
M. Toporkov, V. Avrutin, S. Okur, N. Izyumskaya, D. Demchenko, J. Volk, D. J. Smith, H. Morkoç, Ü. Özgür,
"Enhancement of Be and Mg incorporation in wurtzite quaternary BeMgZnO alloys with up to 5.1 eV optical bandgap"
J. Cryst. Growth 402, 60 (2014)
Conference Proceedings
2017
Mykyta Toporkov, Partha Mukhopadhyay, Haider Ali, Valeria Beletsky, Fikadu Alema, Andrei Osinsky, Winston V Schoenfeld
"MgZnO Grown by Molecular Beam Epitaxy on N-Type ß-Ga2O3 for UV Schottky Barrier Solar-Blind Photodetectors"
Proceedings SPIE 10105, Oxide-based Materials and Devices VIII, 101051N
2017
MB Ullah, M Toporkov, V Avrutin, Ü Özgür, DJ Smith, H Morkoç
"Quaternary BeMgZnO by plasma-enhanced molecular beam epitaxy for BeMgZnO/ZnO heterostructure devices"
Proc. SPIE 10105, Oxide-based Materials and Devices VIII, 101050J (February 24, 2017)
2017
Fikadu Alema, Brain Hertog, Andrei Osinsky, Partha Mukhopadhyay, Mykyta Toporkov, Winston V Schoenfeld, Elaheh Ahmadi, James Speck
"Vertical solar blind Schottky photodiode based on Homoepitaxial Ga2O3 thin film"
Proc. SPIE 10105, Oxide-based Materials and Devices VIII, 101051M (February 24, 2017)
2016
M. Toporkov, S. Hafiz, M.D.B. Ullah, N. Tanner, V. Avrutin, H. Morkoç, and Ü. Özgür
"Exciton localization and large stokes shift in quaternary BeMgZnO grown by molecular beam epitaxy"
SPIE 9749, Oxide-based Materials and Devices VII, 974910
Presentations
2017
M. Toporkov, P. Mukhopadhyay, H. Ali, V. Beletsky, F. Alema, A. Osinsky, and W. V. Schoenfeld
"MgZnO grown by molecular beam epitaxy on n-Type B-Ga2O3 for UV Schottky barrier solar-blind photodetectors"
OPTO at SPIE Photonics West, San Francisco
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