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The influence of ultraviolet exposure and humidity on the photoluminescence spectra of zinc oxide
Kh. A. Abdullina, M. T. Gabdullinb, V. V. Kudryashova, S. E. Kumekovc, N. K. Saitovac a National Nanotechnology Open Laboratory, al-Farabi Kazakh National University, Almaty, Kazakhstan
b Kazakh–British Technical University, Almaty, Kazakhstan
c National Nanotechnology Open Laboratory, al-Farabi Kazakh National University, Almaty, Kazakhstan
Abstract:
The structure and electrical and luminescent properties of arrays of zinc-oxide nanorods grown by the hydrothermal method are studied. It was found that the exposure of samples to ultraviolet light or the presence of water vapor in a gaseous atmosphere significantly change the photoluminescence spectra. The exposure of samples leads to a substantial increase in intrinsic photoluminescence and a decrease in impurity photoluminescence. The presence of water vapor leads to the opposite effect. It is shown that the observed effects are caused by the change in the surface-band bending and the thickness of the depletion region.
Received: 30.06.2017 Revised: 04.04.2018
Citation:
Kh. A. Abdullin, M. T. Gabdullin, V. V. Kudryashov, S. E. Kumekov, N. K. Saitova, “The influence of ultraviolet exposure and humidity on the photoluminescence spectra of zinc oxide”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 44:13 (2018), 80–87; Tech. Phys. Lett., 44:7 (2018), 591–594
Linking options:
https://www.mathnet.ru/eng/pjtf5767 https://www.mathnet.ru/eng/pjtf/v44/i13/p80
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Abstract page: | 40 | Full-text PDF : | 11 |
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