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Письма в Журнал экспериментальной и теоретической физики, 2009, том 89, выпуск 2, страницы 84–88
(Mi jetpl342)
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Эта публикация цитируется в 6 научных статьях (всего в 6 статьях)
КОНДЕНСИРОВАННЫЕ СРЕДЫ
Quasi-direct optical transitions in Ge nanocrystals embedded in GeO$_2$ matrix
V. A. Volodinab, E. V. Gorokhovb, D. V. Marinbc, H. Rinnertc, P. Miskac, M. Vergnatc a Novosibirsk State University
b Institute of Semiconductor Physics Siberian branch RAS
c Laboratoire de Physique des Matériaux (LPM),
Nancy-Université, CNRS, 54506 Vandœuvre lès Nancy, France
Аннотация:
GeO$_2$ films with germanium nanocrystals (NCs) were deposited from supersaturated GeO vapor with subsequent dissociation on Ge:GeO$_2$. The films were studied using photoluminescence (PL), Raman scattering, IR-spectroscopy techniques. Ge NCs in initial film have sizes about 6–8 nm and have no visible PL signal. The broad green-red PL peak was detected in Ge:GeO$_2$ films after thermal annealings. According to effective mass approach, maximum of PL signal from such relatively big Ge NCs should be in IR region. The experimentally observed PL signal is presumably originated due to quasi-direct $L_1-L_3'$ optical transitions “folded” in germanium NCs.
Поступила в редакцию: 04.12.2008
Образец цитирования:
V. A. Volodin, E. V. Gorokhov, D. V. Marin, H. Rinnert, P. Miska, M. Vergnat, “Quasi-direct optical transitions in Ge nanocrystals embedded in GeO$_2$ matrix”, Письма в ЖЭТФ, 89:2 (2009), 84–88; JETP Letters, 89:2 (2009), 76–79
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/jetpl342 https://www.mathnet.ru/rus/jetpl/v89/i2/p84
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Страница аннотации: | 220 | PDF полного текста: | 69 | Список литературы: | 26 |
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