Site Occupancies, Luminescence, and Thermometric Properties of LiY9(SiO4)(6)O-2:Ce3+ Phosphors

doi:10.1021/acs.inorgchem.6b01656

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	Site Occupancies, Luminescence, and Thermometric Properties of LiY9(SiO4)(6)O-2:Ce3+ Phosphors
	Zhou, WJ; Pan, FJ; Zhou, L; Hou, DJ; Huang, Y; Tao, Y; Liang, HB; Huang Y(黄艳); Tao Y(陶冶)
	2016
发表期刊	INORGANIC CHEMISTRY (IF:4.857[JCR-2016],4.503[5-Year])
ISSN	0020-1669
EISSN	1520-510X
卷号	55 期号:20 页码:10415-10424
文章类型	Article
摘要	In this work, we report the tunable emission properties of Ce3+ in an apatite-type LiY9(SiO4)(6)O-2 compound via adjusting the doping concentration or temperature. The occupancies of Ce3+ ions at two different sites (Wyckoff 6h and 4f sites) in LiY9(SiO4)(6)O-2 have been determined by Rietveld refinements. Two kinds of Ce3+ f-d transitions have been studied in detail and then assigned to certain sites. The effects of temperature and doping concentration on Ce3+ luminescence properties have been systematically investigated. It is found that the Ce3+ ions prefer occupying Wyckoff 6h sites and the energy transfer between Ce3+ at two sites becomes more efficient with an increase in doping concentration. In addition, the charge-transfer vibronic exciton (CTVE) induced by the existence of free oxygen ion plays an important role in the thermal quenching of Ce3+ at 6h sites. Because of the tunable emissions from cyan to blue with increasing temperature, the phosphors LiY9(SiO4)(6)O-2:Ce3+ are endowed with possible thermometric applications.
DOI	10.1021/acs.inorgchem.6b01656
关键词[WOS]	ENERGY-TRANSFER ; CRYSTAL-STRUCTURE ; BLUE PHOSPHOR ; UV EXCITATION ; CE3+ ; DYNAMICS ; PHOTOLUMINESCENCE ; LEDS ; VUV ; OCCUPATION
收录类别	SCI
语种	英语
WOS类目	Chemistry, Inorganic & Nuclear
WOS记录号	WOS:000385785700056
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://ir.ihep.ac.cn/handle/311005/260424
专题	多学科研究中心
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Zhou, WJ,Pan, FJ,Zhou, L,et al. Site Occupancies, Luminescence, and Thermometric Properties of LiY9(SiO4)(6)O-2:Ce3+ Phosphors[J]. INORGANIC CHEMISTRY,2016,55(20):10415-10424.
APA	Zhou, WJ.,Pan, FJ.,Zhou, L.,Hou, DJ.,Huang, Y.,...&陶冶.(2016).Site Occupancies, Luminescence, and Thermometric Properties of LiY9(SiO4)(6)O-2:Ce3+ Phosphors.INORGANIC CHEMISTRY,55(20),10415-10424.
MLA	Zhou, WJ,et al."Site Occupancies, Luminescence, and Thermometric Properties of LiY9(SiO4)(6)O-2:Ce3+ Phosphors".INORGANIC CHEMISTRY 55.20(2016):10415-10424.