期刊
JOURNAL OF APPLIED PHYSICS
卷 125, 期 22, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5094684
关键词
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资金
- MEXT, Japan [17H01263]
- Grants-in-Aid for Scientific Research [17H01263] Funding Source: KAKEN
Excitation-current-density and temperature-dependent cathodoluminescence (CL) spectra were measured for rocksalt-structured MgxZn1-xO films with x=0.92-0.61. A deep UV luminescence (DUVL) band was predominantly observed in an energy range of 4.91-5.86eV for all the films at 6-300K. The analysis based on a rate equation model confirms that the DUVL band is attributed to the near-band-edge emission. Temperature-dependent CL spectra were quantified in terms of peak energy shifts and full width at half maximum values. Relatively high equivalent internal quantum efficiencies of 2.5%-11% were obtained for the RS-MgxZn1-xO films.
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