Two Ce3+ centers induced broadband emission in Y3Si6N11Ce3+ yellow phosphor

doi:10.1039/c8dt03936d

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	Two Ce3+ centers induced broadband emission in Y3Si6N11Ce3+ yellow phosphor
	Sun, D. S.; Zhang, L. L.; Hao, Z. D.; Zhang, X.; Pan, G. H.; Wu, H. J.; Luo, Y. S.; He, S.; Zhao, H. F.; Zhang, J. H.
	2018
发表期刊	Dalton Transactions
ISSN	1477-9226
卷号	47 期号:46 页码:16723-16728
摘要	The Y3Si6N11:Ce3+ yellow phosphor shows a well-known approximate to 150 nm broad emission band, exhibiting a potential application in UV or blue based white LEDs. We report the observation of two Ce3+ emitting centers, the superposition of which forms the broad emission band. One center has a green emission band peaked at 539 nm (Ce1) with the first excitation band at 420 nm. The other has a red emission band peaked at 600 nm (Ce2) with the first excitation band at 485 nm. The two Ce3+ centers are assigned to the substitution for two Y sites in Y3Si6N11. It was found that the Ce2 emission intensity is continuously enhanced relative to that of Ce1 with an increasing Ce3+ concentration, thus leading to a redshift of the broadband. Meanwhile, a more notable fluorescence lifetime shortening of Ce1 compared to Ce2 with an increasing Ce3+ concentration was observed. These results suggest the occurrence of energy transfer from Ce1 to Ce2. The temperature-dependent luminescence intensity of Y3Si6N11:Ce3+ was also studied in the range of 93 to 473 K.
关键词	high-temperature synthesis luminescence properties crystal-structure thermal-degradation pressure synthesis optical-properties red phosphor light semiconductor caalsin3-eu2+ Chemistry
DOI	10.1039/c8dt03936d
收录类别	SCI ; EI
引用统计
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/61203
专题	中国科学院长春光学精密机械与物理研究所
推荐引用方式 GB/T 7714	Sun, D. S.,Zhang, L. L.,Hao, Z. D.,et al. Two Ce3+ centers induced broadband emission in Y3Si6N11Ce3+ yellow phosphor[J]. Dalton Transactions,2018,47(46):16723-16728.
APA	Sun, D. S..,Zhang, L. L..,Hao, Z. D..,Zhang, X..,Pan, G. H..,...&Zhang, J. H..(2018).Two Ce3+ centers induced broadband emission in Y3Si6N11Ce3+ yellow phosphor.Dalton Transactions,47(46),16723-16728.
MLA	Sun, D. S.,et al."Two Ce3+ centers induced broadband emission in Y3Si6N11Ce3+ yellow phosphor".Dalton Transactions 47.46(2018):16723-16728.

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