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초록
We report on the optical modulation of ultraviolet (UV) photoluminescence from ZnO nanocrystals excited by He-Cd laser (325 nm) with visible Ar+ laser radiation (488 nm). The effective reversible quenching of the UV luminescence intensity was achieved. The quenching efficiency was found to depend on temperature, the ratio of He-Cd and Ar+ laser intensities, and the frequency of modulation.
키워드
ZnO; photoluminescence; modulation; ELECTRON-SPIN RESONANCE; GREEN PHOTOLUMINESCENCE; PHOSPHOR POWDERS; SPRAY-PYROLYSIS; FILMS
- 제목
- Modulation of Excitonic Emission from ZnO Nanocrystals by Visible Light Illumination
- 저자
- Kurbanov, Saidislam; Panin, Germady; Kang, Tae Won; Kim, Tae Whan
- 발행일
- 2008-05
- 유형
- Article
- 권
- 47
- 호
- 5
- 페이지
- 3760 ~ 3762