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The influence of EL2 centers on the photoelectric response of an array of radial GaAs/AlGaAs nanowires
N. R. Grigor'evaa, I. V. Shtromab, R. V. Grigor'eva, I. P. Soshnikovbcd, R. R. Reznike, Yu. B. Samsonenkob, N. V. Sibirevae, G. E. Cirlincf a Saint Petersburg State University
b Institute for Analytical Instrumentation, Russian Academy of Sciences, St. Petersburg
c Alferov Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg
d Ioffe Institute, St. Petersburg
e St. Petersburg National Research University of Information Technologies, Mechanics and Optics
f Saint Petersburg Electrotechnical University "LETI"
Abstract:
We have studied the role of EL2 centers in formation of the photoelectric response of an array of radial $n$-type GaAs/Al$_{x}$Ga$_{1-x}$As ($x$ = 0.3) nanowires (NWs) grown by molecular beam epitaxy on a $p$-type silicon substrate. Results revealed a significant decrease in the time of NW photoresponse recovery as compared to that in a bulk crystal upon the transition of EL2 centers from a metastable nonactive state to the normal ground state.
Keywords:
molecular beam epitaxy, semiconductors, nanowires, photoelectric properties, defects, gallium arsenide, silicon.
Received: 07.05.2019 Revised: 07.05.2019 Accepted: 13.05.2019
Citation:
N. R. Grigor'eva, I. V. Shtrom, R. V. Grigor'ev, I. P. Soshnikov, R. R. Reznik, Yu. B. Samsonenko, N. V. Sibirev, G. E. Cirlin, “The influence of EL2 centers on the photoelectric response of an array of radial GaAs/AlGaAs nanowires”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 45:16 (2019), 37–40; Tech. Phys. Lett., 45:8 (2019), 835–838
Linking options:
https://www.mathnet.ru/eng/pjtf5350 https://www.mathnet.ru/eng/pjtf/v45/i16/p37
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