GaAs/Ge/Si epitaxial substrates: Development and characteristics

We developed high quality 2-inch GaAs/Ge/Si (100) epitaxial substrates, which may be used instead of GaAs monolithic substrates for fabrication of solar cells, photodetectors, LEDs, lasers, etc. A 200–300 nm Ge buffer layer was grown on Si substrates using the HW-CVD technique at 300°C, a tantalum s...

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Main Authors: Yury Buzynin, Vladimir Shengurov, Boris Zvonkov, Alexander Buzynin, Sergey Denisov, Nikolay Baidus, Michail Drozdov, Dmitry Pavlov, Pavel Yunin
Format: Article
Language:English
Published: AIP Publishing LLC 2017-01-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4974498
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author Yury Buzynin
Vladimir Shengurov
Boris Zvonkov
Alexander Buzynin
Sergey Denisov
Nikolay Baidus
Michail Drozdov
Dmitry Pavlov
Pavel Yunin
author_facet Yury Buzynin
Vladimir Shengurov
Boris Zvonkov
Alexander Buzynin
Sergey Denisov
Nikolay Baidus
Michail Drozdov
Dmitry Pavlov
Pavel Yunin
author_sort Yury Buzynin
collection DOAJ
description We developed high quality 2-inch GaAs/Ge/Si (100) epitaxial substrates, which may be used instead of GaAs monolithic substrates for fabrication of solar cells, photodetectors, LEDs, lasers, etc. A 200–300 nm Ge buffer layer was grown on Si substrates using the HW-CVD technique at 300°C, a tantalum strip heated to 1400°C was used as the “hotwire”. The MOCVD method was used to grow a 1 μ GaAs layer on a Ge buffer. The TDD in the GaAs layers did not exceed (1–2)∙105 cm-2 and the surface RMS roughness value was under 1 nm.
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spelling doaj.art-3eef9679526441e1b697583ab7adba4d2022-12-21T18:22:19ZengAIP Publishing LLCAIP Advances2158-32262017-01-0171015304015304-610.1063/1.4974498043701ADVGaAs/Ge/Si epitaxial substrates: Development and characteristicsYury Buzynin0Vladimir Shengurov1Boris Zvonkov2Alexander Buzynin3Sergey Denisov4Nikolay Baidus5Michail Drozdov6Dmitry Pavlov7Pavel Yunin8Institute for Physics of Microstructures, Russian Academy of Sciences, GSP-105, Nizhny Novgorod, RussiaLobachevski State University, 23 Gagarin Ave., 603950, Nizhny Novgorod, RussiaLobachevski State University, 23 Gagarin Ave., 603950, Nizhny Novgorod, RussiaProkhorov General Physics Institute, Russian Academy of Sciences, 38 Vavilov st., 119991, Moscow, RussiaLobachevski State University, 23 Gagarin Ave., 603950, Nizhny Novgorod, RussiaLobachevski State University, 23 Gagarin Ave., 603950, Nizhny Novgorod, RussiaInstitute for Physics of Microstructures, Russian Academy of Sciences, GSP-105, Nizhny Novgorod, RussiaLobachevski State University, 23 Gagarin Ave., 603950, Nizhny Novgorod, RussiaInstitute for Physics of Microstructures, Russian Academy of Sciences, GSP-105, Nizhny Novgorod, RussiaWe developed high quality 2-inch GaAs/Ge/Si (100) epitaxial substrates, which may be used instead of GaAs monolithic substrates for fabrication of solar cells, photodetectors, LEDs, lasers, etc. A 200–300 nm Ge buffer layer was grown on Si substrates using the HW-CVD technique at 300°C, a tantalum strip heated to 1400°C was used as the “hotwire”. The MOCVD method was used to grow a 1 μ GaAs layer on a Ge buffer. The TDD in the GaAs layers did not exceed (1–2)∙105 cm-2 and the surface RMS roughness value was under 1 nm.http://dx.doi.org/10.1063/1.4974498
spellingShingle Yury Buzynin
Vladimir Shengurov
Boris Zvonkov
Alexander Buzynin
Sergey Denisov
Nikolay Baidus
Michail Drozdov
Dmitry Pavlov
Pavel Yunin
GaAs/Ge/Si epitaxial substrates: Development and characteristics
AIP Advances
title GaAs/Ge/Si epitaxial substrates: Development and characteristics
title_full GaAs/Ge/Si epitaxial substrates: Development and characteristics
title_fullStr GaAs/Ge/Si epitaxial substrates: Development and characteristics
title_full_unstemmed GaAs/Ge/Si epitaxial substrates: Development and characteristics
title_short GaAs/Ge/Si epitaxial substrates: Development and characteristics
title_sort gaas ge si epitaxial substrates development and characteristics
url http://dx.doi.org/10.1063/1.4974498
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