PREPARATION AND PHOTOLUMINESCENCE PROPERTIES OF RF-SPUTTERED ZnO FILMS
Autor: | K. Tarigan, T. D. Canh, T. L. Phan, N. T. T. Lieu, N. X. Nghia |
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Rok vydání: | 2015 |
Předmět: | |
Zdroj: | International Journal of Innovation in Mechanical Engineering and Advanced Materials. 1:32 |
ISSN: | 2477-541X 2477-5428 |
Popis: | ZnO/Si films were prepared by radio frequency (RF) magnetron sputtering at room temperature. By optimizing the heat treatment conditions, we obtained a good quality film annealed at 700 ºC for longer 60 minutes. This process was monitored carefully by Raman scattering spectroscopy, and X-ray diffraction. The photoluminescence study on this film revealed that only ultraviolet emissions due to donor-acceptor pair (DAP), neutral acceptor-bound exciton (AºX) and donor-bound exciton (DºX) were observed. The intensity and peak position of these emissions depend on the measurement temperature and excitation power density. |
Databáze: | OpenAIRE |
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