Red emission of additional Pr3+ and adjusting effect of additional Mg2+ in Ca3Sc2Si3O12: Ce3+, Mn2+ phosphor
文献类型：期刊论文
| 作者 | Qiao, Jun ; Zhang, Jiahua ; Zhang, Xia ; Hao, Zhendong ; Liu, Yongfu ; Pan, Guohui |
| 刊名 | OPTICS LETTERS
 |
| 出版日期 | 2014 |
| 卷号 | 39期号:9页码:2691 |
| 中文摘要 | In this Letter, we report the addition of Pr3+ and Mg2+ in CSS: Ce3+, Mn2+ phosphor for improving the performances of white light-emitting diodes (LEDs). The additional trivalent Pr3+ will occupy the Ca2+ site in this host like the situation of Ce3+, its concentration can be enhanced by the addition of Mg2(+) in Sc3+ site due to the substitution of Mg2+ for Sc3+ can compensate the charge mismatch between Pr3+ and Ca2+. Based on the efficient Ce3+-> Pr3+ and Mn2(+)-> Pr3+ energy transfers (ETs) and the compensation effect of Mg2+, the additional Pr3+ in our present phosphors exhibits an intense red-emission around 610 nm, which is significant for enhancing the color rendering property. In addition, we also find that the additional Mg2+ in Sc3+ site can markedly adjust the photoluminescence (PL) spectrum shape of our phosphor by controlling the distribution of Mn2+ at Ca2+ and Sc3+ sites. A new tunable full-color emission is obtained via the ETs (Ce3+-> Mn2+, Ce3+-> Pr3+ and Mn2+-> Pr3+) and the adjusting effect of Mg2+ in our present phosphors. Finally, a white LED with higher color rendering index of 90, lower correlated color temperature of 4980 K, and chromaticity coordinates of (0.34, 0.31) was obtained by combining the single CSS: 0.08Ce(3+), 0.01 Pr3 +, 0.3Mn(2+), 0.2Mg(2+) phosphor with a blue-emitting InGaN LED chip. (C) 2014 Optical Society of America |
| 公开日期 | 2015-09-20 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/11865]  |
| 专题 | 宁波材料技术与工程研究所_2014专题 |
| 推荐引用方式 GB/T 7714 | Qiao, Jun,Zhang, Jiahua,Zhang, Xia,et al. Red emission of additional Pr3+ and adjusting effect of additional Mg2+ in Ca3Sc2Si3O12: Ce3+, Mn2+ phosphor[J]. OPTICS LETTERS,2014,39(9):2691. |
| APA | Qiao, Jun,Zhang, Jiahua,Zhang, Xia,Hao, Zhendong,Liu, Yongfu,&Pan, Guohui.(2014).Red emission of additional Pr3+ and adjusting effect of additional Mg2+ in Ca3Sc2Si3O12: Ce3+, Mn2+ phosphor.OPTICS LETTERS,39(9),2691. |
| MLA | Qiao, Jun,et al."Red emission of additional Pr3+ and adjusting effect of additional Mg2+ in Ca3Sc2Si3O12: Ce3+, Mn2+ phosphor".OPTICS LETTERS 39.9(2014):2691. |
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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