期刊
THIN SOLID FILMS
卷 669, 期 -, 页码 525-530出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2018.11.055
关键词
Cerium dioxide thin films; Pulsed laser deposition; Photo response; Ultra violet photodetector
类别
资金
- IUAC, New Delhi, India [UFR-59316]
We report on the structural, optical and optoelectronic properties of CeO2 films grown by pulsed laser deposition for its possible use as optoelectronic switch device. (111) oriented highly uniform nano-structured CeO2 films of about 100 nm were grown on quartz substrate at different temperatures for optimization of growth parameters. A slight variation in the optical band gap was observed for average 60% optically transparent films deposited at different temperatures. Enhanced photo resistive effects were recorded for all the films excited by UV light (254 nm) of intensity 3.6 mW/cm(2). Optoelectronic parameters such as photo resistivity, responsivity, detectivity and dynamic responses were optimized for the CeO2 films grown at different temperatures.
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