Spectral, energy resolution properties and green-yellow LEDs applications of transparent Ce3+:Lu3Al5O12 ceramics

doi:10.1016/j.jeurceramsoc.2016.06.015

	Spectral, energy resolution properties and green-yellow LEDs applications of transparent Ce3+:Lu3Al5O12 ceramics
	Du, Miaomiao 1; Chen, Jinda2 ; Tang, Fei 1; Ma, Chaoyang 1; Ma, Ran 1; Yuan, Xuanyi 1; Wen, Zicheng 1; Long, Jiaqi 1; Li, Junting 1; Cao, Yongge 1
刊名	JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
	2016-12-01
卷号	36 页码:4205-4213
关键词	LEDs Ce:LuAG Energy levels XPS Energy resolution
ISSN号	0955-2219
DOI	10.1016/j.jeurceramsoc.2016.06.015
英文摘要	Transparent Ce3+:Lu3Al5O12 ceramics were successfully fabricated by combining tape-casting method and direct-forming method with solid-state sintering. The in-line optical transmittance and absorption spectra of as-sintered and air-annealed Ce:LuAG ceramics were comparely studied. XPS spectra indicated Ce3+ and Ce4+ ions co-existed in the prepared ceramics. Energy levels splitting of Ce3+ in LuAG hosts were investigated based on broad-band emission from 500 nm to 700 nm resulting from the electron transitions from 5d(1) excited levels (D-2) to 4f ground state of Ce3+ (F-2(5/2), F-2(7/2)). The fluorescence lifetimes at 540 nm were 50-60 ns and energy resolution of 12% was achieved at Na-22 (511 keV). When collaborated with InGaN-GaN LED chips, a maximum CRI of 55.8 with LE as high as 223.4 lm/W were demonstrated, indicating that Ce:LuAG ceramics had a promising potential for white light-emitting diodes. (C) 2016 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[51272282] ; National Natural Science Foundation of China[51302311] ; significant achievement transformation project of colleges and universities of the Central in Beijing - Beijing Municipal Education Comission[ZD20141000201]
WOS关键词	LIGHT-EMITTING-DIODES ; YAG CERAMICS ; SCINTILLATOR ; FABRICATION ; XPS ; ENHANCEMENT ; LU3AL5O12 ; PHOSPHOR ; CEO2 ; LUAG
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000382595600045
资助机构	National Natural Science Foundation of China ; significant achievement transformation project of colleges and universities of the Central in Beijing - Beijing Municipal Education Comission
内容类型	期刊论文
源URL	[http://119.78.100.186/handle/113462/43399]
专题	近代物理研究所_实验物理中心
通讯作者	Cao, Yongge
作者单位	1.Renmin Univ China, Dept Phys, Beijing Key Lab Optoelect Funct Mat & Micronano D, Beijing 100872, Peoples R China 2.Chinese Acad Sci, Inst Modern Phys, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Du, Miaomiao,Chen, Jinda,Tang, Fei,et al. Spectral, energy resolution properties and green-yellow LEDs applications of transparent Ce3+:Lu3Al5O12 ceramics[J]. JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,2016,36:4205-4213.
APA	Du, Miaomiao.,Chen, Jinda.,Tang, Fei.,Ma, Chaoyang.,Ma, Ran.,...&Zhang, Jiantao.(2016).Spectral, energy resolution properties and green-yellow LEDs applications of transparent Ce3+:Lu3Al5O12 ceramics.JOURNAL OF THE EUROPEAN CERAMIC SOCIETY,36,4205-4213.
MLA	Du, Miaomiao,et al."Spectral, energy resolution properties and green-yellow LEDs applications of transparent Ce3+:Lu3Al5O12 ceramics".JOURNAL OF THE EUROPEAN CERAMIC SOCIETY 36(2016):4205-4213.