Novel tunable green-red-emitting oxynitride phosphors co-activated with Ce3+, Tb3+, and Eu3+: photoluminescence and energy transfer

2017 ◽  
Vol 19 (26) ◽  
pp. 17314-17323 ◽  
Author(s):  
Jiansheng Huo ◽  
Langping Dong ◽  
Wei Lü ◽  
Baiqi Shao ◽  
Hongpeng You

A novel Ce3+ → Tb3+ → Eu3+ scheme is introduced into Y4SiAlO8N to develop NUV-excitable green and red phosphors.

Optik ◽  
2021 ◽  
Vol 238 ◽  
pp. 166774
Author(s):  
Huan Duan ◽  
Ruirui Cui ◽  
Min Zhang ◽  
Chaoyong Deng

2019 ◽  
Vol 214 ◽  
pp. 116532 ◽  
Author(s):  
He Tang ◽  
Xiyan Zhang ◽  
Liqun Cheng ◽  
Lipeng Jiang ◽  
Xiaoyun Mi ◽  
...  

2011 ◽  
Vol 158 (2) ◽  
pp. J1 ◽  
Author(s):  
Ying-Chien Fang ◽  
Sheng-Yuan Chu ◽  
Po-Ching Kao ◽  
You-Ming Chuang ◽  
Zong-Liang Zeng

2020 ◽  
Vol 122 ◽  
pp. 105857 ◽  
Author(s):  
Jinle Zheng ◽  
Xiulan Wu ◽  
Qiang Ren ◽  
Wenni Bai ◽  
Yuhan Ren ◽  
...  

2018 ◽  
Vol 196 ◽  
pp. 520-524 ◽  
Author(s):  
Bin Fan ◽  
Shimei Qi ◽  
Wenyu Zhao ◽  
Songbo Li ◽  
Shengli An

2012 ◽  
Vol 591-593 ◽  
pp. 931-934 ◽  
Author(s):  
Xiu Juan Geng ◽  
Yong Jie Chen ◽  
Yan Wen Tian ◽  
Lin Jiu Xiao

The red phosphor Gd2(MoO4)3:Eu3+,Sm3+ was prepared by sol-gel method. The morphology and luminescence characteristics of the phosphor particles were characterized by scanning electron microscopy (SEM) and fluorophotometer. The results showed that the phosphor had the advantages of small particle size and the uniform particle size distribution. The luminescence properties of Eu3+ ions in Gd1.37Eu0.6Sm0.03(MoO4)3 could be evidently improved by co-doping of Sm3+ ions, which was due to the efficient energy transfer process from Sm3+ to Eu3+ ions. The chromaticity coordinates for Eu3+ doped Gd1.4Eu0.6(MoO4)3 and Eu3+ and Sm3+ codoped Gd1.37Eu0.6Sm0.03(MoO4)3, are(0.662, 0.329) and (0.668, 0.331), respectively. Because of the introduction of Sm3+ into the red-emitting phosphors, the chromaticity coordinates of Gd1.37Eu0.6Sm0.03(MoO4)3 phosphor is closer to the standard values of International chromaticity coordinates(0.67, 0.33). So Gd1.37Eu0.6Sm0.03(MoO4)3 shows good prospect for red phosphors of white LED.


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