Luminescence of Tb3+/Eu3+ codoped LiYF4 single crystals under UV excitation for white-light LEDs
文献类型：会议论文
| 作者 | Jiang, Yongzhang; Xia, Haiping; Yang, Shuo; Zhang, Jiazhong; Jiang, Dongsheng; Wang, Cheng; Feng, Zhigang; Zhang, Jian; Gu, Xuemei; Zhang, Jianli |
| 出版日期 | 2015 |
| 会议日期 | DEC 07-10, 2014 |
| 关键词 | GLASS |
| 卷号 | 13 |
| 期号 | 7 |
| DOI | 10.3788/COL.201513.071601 |
| 英文摘要 | The absorption spectra, excitation spectra, and emission spectra of Tb3+/Eu3+ ions in LiYF4 single crystals synthesized by an improved Bridgman method are measured. The emission spectra of several bands, mainly located at blue similar to 487 nm (Tb:D-5(4) -> F-7(6)), yellowish green similar to 542 nm (Tb:D-5(4) -> F-7(5)) and red similar to 611 nm (Eu:D-5(0) -> F-7(2)) wavelengths, are observed under excitation by UV light. An ideal white light emission as a result of simultaneous combination of these emissions can be obtained from 1.11 mol% Tb3+ and 0.9 mol% Eu3+ co-doped LiYF4 single crystals with chromaticity coordinates of = 0.3242, y = 0.3389, color temperature T-c = 5878 K, color rendering index R-a = 77, and color quality scale Q(a) = 75 under excitation of 384 nin light. The chromaticity coordinate, color rendering index, and color quality scale can be modified by the change of the concentration of rare-earth dopants and the excitation wavelength. |
| 学科主题 | Optics |
| ISSN号 | 1671-7694 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/23526]  |
| 专题 | 会议专题 会议专题_会议论文 |
| 推荐引用方式 GB/T 7714 | Jiang, Yongzhang,Xia, Haiping,Yang, Shuo,et al. Luminescence of Tb3+/Eu3+ codoped LiYF4 single crystals under UV excitation for white-light LEDs[C]. 见:. DEC 07-10, 2014. |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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