Electrical, optical, and photoluminescence properties of ZnO films subjected to thermal annealing and treatment in hydrogen plasma
- Авторлар: 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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Мекемелер:
- National Nanotechnology Laboratory of Open Type
- Kazakh National Technical Research University
- University of Waterloo
- Ioffe Physical–Technical Institute
- Шығарылым: Том 50, № 8 (2016)
- Беттер: 1010-1014
- Бөлім: Surfaces, Interfaces, and Thin Films
- URL: https://journals.rcsi.science/1063-7826/article/view/197560
- DOI: https://doi.org/10.1134/S1063782616080029
- ID: 197560
Дәйексөз келтіру
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.
Авторлар туралы
Kh. Abdullin
National Nanotechnology Laboratory of Open Type
Email: skumekov@mail.ru
Қазақстан, Almaty, 050000
M. Gabdullin
National Nanotechnology Laboratory of Open Type
Email: skumekov@mail.ru
Қазақстан, Almaty, 050000
L. Gritsenko
Kazakh National Technical Research University
Email: skumekov@mail.ru
Қазақстан, Almaty, 050013
D. Ismailov
National Nanotechnology Laboratory of Open Type
Email: skumekov@mail.ru
Қазақстан, Almaty, 050000
Zh. Kalkozova
National Nanotechnology Laboratory of Open Type
Email: skumekov@mail.ru
Қазақстан, Almaty, 050000
S. Kumekov
Kazakh National Technical Research University
Хат алмасуға жауапты Автор.
Email: skumekov@mail.ru
Қазақстан, Almaty, 050013
Zh. Mukash
Kazakh National Technical Research University
Email: skumekov@mail.ru
Қазақстан, 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
Ресей, St. Petersburg, 194021