The Influence of EL2 Centers on the Photoelectric Response of an Array of Radial GaAs/AlGaAs Nanowires


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Resumo

We have studied the role of EL2 centers in formation of the photoelectric response of an array of radial n-type GaAs/AlxGa1 –xAs (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.

Sobre autores

N. Grigorieva

St. Petersburg State University

Autor responsável pela correspondência
Email: n.r.grigorieva@spbu.ru
Rússia, St. Petersburg, 199034

I. Shtrom

St. Petersburg State University; Institute for Analytical Instrumentation, Russian Academy of Sciences

Email: n.r.grigorieva@spbu.ru
Rússia, St. Petersburg, 199034; St. Petersburg, 198095

R. Grigoriev

St. Petersburg State University

Email: n.r.grigorieva@spbu.ru
Rússia, St. Petersburg, 199034

I. Soshnikov

Institute for Analytical Instrumentation, Russian Academy of Sciences; St. Petersburg Academic University, Russian Academy of Sciences; Ioffe Physical Technical Institute, Russian Academy of Sciences

Email: n.r.grigorieva@spbu.ru
Rússia, St. Petersburg, 198095; St. Petersburg, 194021; St. Petersburg, 194021

R. Reznik

St. Petersburg University of Information Technologies, Mechanics, and Optics (ITMO University)

Email: n.r.grigorieva@spbu.ru
Rússia, St. Petersburg, 197101

Yu. Samsonenko

Institute for Analytical Instrumentation, Russian Academy of Sciences

Email: n.r.grigorieva@spbu.ru
Rússia, St. Petersburg, 198095

N. Sibirev

St. Petersburg State University; St. Petersburg University of Information Technologies, Mechanics, and Optics (ITMO University)

Email: n.r.grigorieva@spbu.ru
Rússia, St. Petersburg, 199034; St. Petersburg, 197101

G. Cirlin

St. Petersburg Academic University, Russian Academy of Sciences; St. Petersburg Electrotechnical University LETI

Email: n.r.grigorieva@spbu.ru
Rússia, St. Petersburg, 194021; St. Petersburg, 197376


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