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Crystal structure, tunable emission and applications of Ca1-xAl1-xSi1+xN3-xOx :RE (x=0-0.22, RE = Ce3+, Eu2+) solid solution phosphors for white light-emitting diodes
Li, Shuxing; Wang, Le; Zhu, Qiangqiang; Tang, Daiming; Liu, Xuejian; Cheng, Guofeng; Lu, Lu; Takeda, Takashi; Hirosaki, Naoto; Huang, Zhengren; Xie, Rong-Jun; xjliu@mail.sic.ac.cn; Xie.Rong-Jun@nims.go.jp
2016
发表期刊J. Mater. Chem. C
卷号4期号:47页码:11219
摘要CaAlSiN3:Eu2+ is a very promising red phosphor for high color rendering white light-emitting diodes (wLEDs), but a large part of its emission covers wavelengths longer than 700 nm, which is not detectable by the human eye and thus wasted. Optimizing its luminescence properties will allow us to further enhance the overall optical properties of wLEDs. In this contribution, the luminescence spectra of Ce3+ or Eu2+-activated CaAlSiN3 were tuned and tailored by introducing isostructural Si2N2O to form solid solutions of Ca1-xAl1-xSi1+xN3-xOx (x = 0-0.22). The structural evolutions, microstructure, luminescence, thermal quenching and quantum efficiency of Ca1-xAl1-xSi1+xN3-xOx:RE (RE = Ce3+, Eu2+) were investigated and clarified by using various analytic techniques. Upon introducing Si2N2O into CaAISiN(3), the Ce3+-doped Ca1-xAl1-xSi1+xN3-xOx shifted its peak emission from 606 to 575 nm and retained the band width of 145 nm, whereas the Eu2+-doped one blue-shifted its emission from 650 to 638 nm and broadened its band width from 90 to 122 nm, owing to the structural distortion and disorder as well as the band gap broadening associated with the solid solution formation. By combining these phosphors with a blue LED, high color rendering (Ra) and luminous efficacy (eta) white LEDs were realized (Ra = 82.5 and eta = 104 lm W-1 for the Ce3+-doped phosphors, and Ra = 97 and eta = 101 lm W-1 for the Eu2+-doped phosphors).
文章类型Article
部门归属材料
DOI10.1039/c6tc04057h
资助者JSPS KAKENHI [15K06448]; National Natural Science Foundation of China [51272259, 5157223, 51472087, 1561135015]; Science and Technology Commission of Shanghai Municipality [14JC1406300]; China Scholarship Council ; JSPS KAKENHI [15K06448]; National Natural Science Foundation of China [51272259, 5157223, 51472087, 1561135015]; Science and Technology Commission of Shanghai Municipality [14JC1406300]; China Scholarship Council ; JSPS KAKENHI [15K06448]; National Natural Science Foundation of China [51272259, 5157223, 51472087, 1561135015]; Science and Technology Commission of Shanghai Municipality [14JC1406300]; China Scholarship Council ; JSPS KAKENHI [15K06448]; National Natural Science Foundation of China [51272259, 5157223, 51472087, 1561135015]; Science and Technology Commission of Shanghai Municipality [14JC1406300]; China Scholarship Council
收录类别SCI
资助者JSPS KAKENHI [15K06448]; National Natural Science Foundation of China [51272259, 5157223, 51472087, 1561135015]; Science and Technology Commission of Shanghai Municipality [14JC1406300]; China Scholarship Council ; JSPS KAKENHI [15K06448]; National Natural Science Foundation of China [51272259, 5157223, 51472087, 1561135015]; Science and Technology Commission of Shanghai Municipality [14JC1406300]; China Scholarship Council ; JSPS KAKENHI [15K06448]; National Natural Science Foundation of China [51272259, 5157223, 51472087, 1561135015]; Science and Technology Commission of Shanghai Municipality [14JC1406300]; China Scholarship Council ; JSPS KAKENHI [15K06448]; National Natural Science Foundation of China [51272259, 5157223, 51472087, 1561135015]; Science and Technology Commission of Shanghai Municipality [14JC1406300]; China Scholarship Council
WOS记录号WOS:000390725800027
引用统计
文献类型期刊论文
条目标识符http://ir.siom.ac.cn/handle/181231/28044
专题中科院强激光材料重点实验室
通讯作者xjliu@mail.sic.ac.cn; Xie.Rong-Jun@nims.go.jp
作者单位中国科学院上海光学精密机械研究所
推荐引用方式
GB/T 7714
Li, Shuxing,Wang, Le,Zhu, Qiangqiang,et al. Crystal structure, tunable emission and applications of Ca1-xAl1-xSi1+xN3-xOx :RE (x=0-0.22, RE = Ce3+, Eu2+) solid solution phosphors for white light-emitting diodes[J]. J. Mater. Chem. C,2016,4(47):11219.
APA Li, Shuxing.,Wang, Le.,Zhu, Qiangqiang.,Tang, Daiming.,Liu, Xuejian.,...&Xie.Rong-Jun@nims.go.jp.(2016).Crystal structure, tunable emission and applications of Ca1-xAl1-xSi1+xN3-xOx :RE (x=0-0.22, RE = Ce3+, Eu2+) solid solution phosphors for white light-emitting diodes.J. Mater. Chem. C,4(47),11219.
MLA Li, Shuxing,et al."Crystal structure, tunable emission and applications of Ca1-xAl1-xSi1+xN3-xOx :RE (x=0-0.22, RE = Ce3+, Eu2+) solid solution phosphors for white light-emitting diodes".J. Mater. Chem. C 4.47(2016):11219.
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