摘要
The undoped and Ce-doped SnO 2 thin films synthesized by a simple sol-gel-dip-coating method on glass substrates were investigated by means of X-ray diffractometer, visible spectrophotometer and photoluminescence (PL) spectroscopy. The samples were polycrystalline thin films with rutile structure of undoped SnO 2 . A violet PL peak was observed in undoped SnO 2 at room temperatures, while a blue PL peak appeared only after introducing Ce 3+ ions into the SnO 2 host. The effects of Ce doping concentration and heat-treatment temperature on PL of the films were further studied, and the luminescence mechanism was also discussed.
源语言 | 英语 |
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页(从-至) | 3255-3259 |
页数 | 5 |
期刊 | Applied Surface Science |
卷 | 258 |
期 | 7 |
DOI | |
出版状态 | 已出版 - 15 1月 2012 |