Red-emitting CaLa4(SiO4)(3)O:Eu3+ phosphor with superior thermal stability and high quantum efficiency for warm w-LEDs
文献类型：期刊论文
| 作者 | Zhong, Jiasong; Chen, Daqin; Xu, Haoxiang; Zhao, Wenguang; Sun, Jie; Ji, Zhengguo |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2017 |
| 卷号 | 695页码:311-318 |
| ISSN号 | 0925-8388 |
| 英文摘要 | To accelerate the next generation of high power white light-emitting diodes, the development of efficient and stable red-emitting phosphors is urgent. In this regard, a series of CaLa4(SiO4)(3)O: Eu3+ phosphors with red-emitting band centered at 612 nm are prepared by a high temperature solid state reaction. Xray diffraction patterns and Rietveld refinement confirm that all the samples are oxyapatite structure with space group of P63/m. Impressively, the quantum efficiency of the prepared red phosphor reaches as high as 97.5% under blue light excitation, and its emission intensity at 423 K remains 82.4% of that at room temperature, which are comparable to those of the commercial Y2O3: Eu3+ red phosphor. As a consequence, a warm white light-emitting diode with a luminous efficiency of 84.9 lm/W, a correlated color temperature of 4012 K and a color rendering index of 84.4 is realized by blending red-emitting CaLa4(SiO4)(3)O: Eu3+ phosphors and yellow-emitting Y3Al5O12: Ce3+ ones with a blue LED chip. It is expected that the explored CaLa4(SiO4)3O: Eu3+ red phosphor can be a good candidate for application in solid-state lighting. (C) 2016 Elsevier B.V. All rights reserved. |
| 公开日期 | 2017-12-25 |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/13972]  |
| 专题 | 2017专题 |
| 推荐引用方式 GB/T 7714 | Zhong, Jiasong,Chen, Daqin,Xu, Haoxiang,et al. Red-emitting CaLa4(SiO4)(3)O:Eu3+ phosphor with superior thermal stability and high quantum efficiency for warm w-LEDs[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2017,695:311-318. |
| APA | Zhong, Jiasong,Chen, Daqin,Xu, Haoxiang,Zhao, Wenguang,Sun, Jie,&Ji, Zhengguo.(2017).Red-emitting CaLa4(SiO4)(3)O:Eu3+ phosphor with superior thermal stability and high quantum efficiency for warm w-LEDs.JOURNAL OF ALLOYS AND COMPOUNDS,695,311-318. |
| MLA | Zhong, Jiasong,et al."Red-emitting CaLa4(SiO4)(3)O:Eu3+ phosphor with superior thermal stability and high quantum efficiency for warm w-LEDs".JOURNAL OF ALLOYS AND COMPOUNDS 695(2017):311-318. |
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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