Electrical, optical, and photoluminescence properties of ZnO films subjected to thermal annealing and treatment in hydrogen plasma
- Авторы: Abdullin K.1, Gabdullin M.1, Gritsenko L.2, Ismailov D.1, Kalkozova Z.1, Kumekov S.2, Mukash Z.2, Sazonov A.3, Terukov E.4
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Учреждения:
- National Nanotechnology Laboratory of Open Type
- Kazakh National Technical Research University
- University of Waterloo
- Ioffe Physical–Technical Institute
- Выпуск: Том 50, № 8 (2016)
- Страницы: 1010-1014
- Раздел: Surfaces, Interfaces, and Thin Films
- URL: https://journals.rcsi.science/1063-7826/article/view/197560
- DOI: https://doi.org/10.1134/S1063782616080029
- ID: 197560
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Аннотация
The photoluminescence and optical absorption spectra and electrical properties of ZnO films grown by the metal–organic chemical vapor deposition and hydrothermal techniques, subjected to heat treatments and plasma treatment in a hydrogen atmosphere, are studied. It is shown that the adsorption of oxygen at grain boundaries upon annealing in an oxidizing atmosphere determines the electrical properties of the films. Vacuum annealing improves the electrical properties of the samples after degradation induced by annealing in air. Treatment in hydrogen plasma passivates surface states at the grain boundaries. The intrinsic photoluminescence intensity after plasma treatment is higher in the case of increased amounts of oxygen adsorbed at grain surfaces upon annealing in air. Surface states involving oxygen and hydrogen atoms are responsible for the high-intensity intrinsic photoluminescence band.
Об авторах
Kh. Abdullin
National Nanotechnology Laboratory of Open Type
Email: skumekov@mail.ru
Казахстан, Almaty, 050000
M. Gabdullin
National Nanotechnology Laboratory of Open Type
Email: skumekov@mail.ru
Казахстан, Almaty, 050000
L. Gritsenko
Kazakh National Technical Research University
Email: skumekov@mail.ru
Казахстан, Almaty, 050013
D. Ismailov
National Nanotechnology Laboratory of Open Type
Email: skumekov@mail.ru
Казахстан, Almaty, 050000
Zh. Kalkozova
National Nanotechnology Laboratory of Open Type
Email: skumekov@mail.ru
Казахстан, Almaty, 050000
S. Kumekov
Kazakh National Technical Research University
Автор, ответственный за переписку.
Email: skumekov@mail.ru
Казахстан, Almaty, 050013
Zh. Mukash
Kazakh National Technical Research University
Email: skumekov@mail.ru
Казахстан, Almaty, 050013
A. Sazonov
University of Waterloo
Email: skumekov@mail.ru
Канада, Waterloo, Ontario, N2L 3G1
E. Terukov
Ioffe Physical–Technical Institute
Email: skumekov@mail.ru
Россия, St. Petersburg, 194021