An intense blue-emitting phosphor for near-ultraviolet pumped white-light-emitting diodes: Ce3+ -activated -Ca2SiO4

	An intense blue-emitting phosphor for near-ultraviolet pumped white-light-emitting diodes: Ce3+ -activated -Ca2SiO4
	Hao Z.; Zhang J.; Zhang X.; Luo Y.; Zhang L.; Zhao H.
	2014
发表期刊	Journal of Luminescence
ISSN	ISBN/00222313
期号	152 页码:40-43
摘要	More recently, Ce3+ activated -Ca2SiO4 has been reported and it shows great potential application as a yellow-emitting phosphor for white LEDs. However, -Ca2SiO4, another known phase of Ca2SiO4, doped with Ce3+ is not available. It is interesting to know if -Ca2SiO4:Ce3+ can also be suitable for white LEDs. For this reason, we synthesized a series of -Ca2SiO4:Ce3+ phosphors by solid state reaction. -Ca2SiO4: Ce3+ exhibits an intense blue emission band peaked at 425 nm with a bandwidth of 68 nm which is attributed to the typical Ce3+ 4f05d14f1 transitions. The integral intensity of the concentration-optimized -Ca2SiO4:Ce3+ can be as high as 71% of the commercial BAM blue phosphor upon 360 nm excitation. The excitation spectra of -Ca2SiO4:Ce3+ consist of three broad bands with maxima at 252, 289 and 348 nm, which are ascribed to the 4f14f05d1 transitions of Ce3+. Thermal quenching property of -Ca2SiO4:Ce3+ was evaluated and the results show that the integral PL intensity at 150 C maintains about 93% of that at room temperature. The excellent thermal stability and intense emission upon NUV light excitation suggest that -Ca2SiO4:Ce3+ can be used as a potential blue-emitting phosphor for NUV white LEDs.
收录类别	EI
语种	英语
文献类型	期刊论文
条目标识符	http://ir.ciomp.ac.cn/handle/181722/43727
专题	中科院长春光机所知识产出
推荐引用方式 GB/T 7714	Hao Z.,Zhang J.,Zhang X.,et al. An intense blue-emitting phosphor for near-ultraviolet pumped white-light-emitting diodes: Ce3+ -activated -Ca2SiO4[J]. Journal of Luminescence,2014(152):40-43.
APA	Hao Z.,Zhang J.,Zhang X.,Luo Y.,Zhang L.,&Zhao H..(2014).An intense blue-emitting phosphor for near-ultraviolet pumped white-light-emitting diodes: Ce3+ -activated -Ca2SiO4.Journal of Luminescence(152),40-43.
MLA	Hao Z.,et al."An intense blue-emitting phosphor for near-ultraviolet pumped white-light-emitting diodes: Ce3+ -activated -Ca2SiO4".Journal of Luminescence .152(2014):40-43.

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