https://scholars.lib.ntu.edu.tw/handle/123456789/407412
標題: | Color-tunable Y2Si4N6C:Ce3+ carbonitride phosphors for ultraviolet light-emitting diodes | 作者: | Hsu C.-H. Lu C.-H. |
公開日期: | 2011 | 卷: | 94 | 期: | 6 | 起(迄)頁: | 1691-1694 | 來源出版物: | Journal of the American Ceramic Society | 摘要: | La3+/Ce3+-codoped carbonitride phosphors-Y 2Si4N6C were synthesized via a carbothermal reduction nitridation route. For the Ce3+-doped Y2Si 4N6C phosphors, the emission spectrum exhibited a broad band at around 538 nm due to the f-d transition of Ce3+ ions. When La3+ ions were incorporated into the host, the emitting colors of (Y, La)2Si4N6C: Ce3+ phosphors varied from a yellowish green to blue region. The great blue shift in emission bands was due to the variation in the crystal-field strength around the activators. In addition, (Y, La)2Si4N6C:Ce3+ phosphors exhibited high thermal stability, indicating the superior suitability in ultraviolet light-emitting diodes. ? 2011 The American Ceramic Society. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/407412 | ISSN: | 00027820 | DOI: | 10.1111/j.1551-2916.2011.04571.x |
顯示於: | 化學工程學系 |
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