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Mechanism of upconversion emission enhancement in Y3Al5O12:Er3+/Li+ powders
Yang Mingzhu1,2; Sui Yu2,3; Mu Haiwei1; Lu Shuchen4; Wang Xianjie2; Lu Tianquan2
Corresponding AuthorYang Mingzhu(yangmingzhu0000@163.com)
2011-11-01
Source PublicationJOURNAL OF RARE EARTHS
ISSN1002-0721
Volume29Issue:11Pages:1022-1025
AbstractEr3+ and Li+ codoped Y3Al5O12 (YAG) powders were prepared for a systematic investigation of their upconversion emissions. X-ray diffraction (XRD), upconversion emission spectra, pump power dependence, FT-IR spectra and decay time were studied to characterize the samples. With Li+ doping, the upconversion emission intensity of Er3+ doped YAG powders was obviously enhanced, accompanied with an increase in the ratio of green to red intensity. The enhancement of emission intensity could be attributed to two mechanisms: one was the distortion of local crystal field around Er3+, and the other was the decrease in the amount of CO32- and OH- groups. Our results revealed that the latter was the dominant mechanism of the upconversion intensity enhancement in the YAG:Er3+/Li+ powders.
Keywordluminescence optical materials and properties sol-gel preparation nanomaterials rare earths
Funding OrganizationNational Natural Science Foundation of China ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry ; Fundamental Research Funds for the Central Universities
DOI10.1016/S1002-0721(10)60590-X
Indexed BySCI
Language英语
Funding ProjectNational Natural Science Foundation of China[50672019] ; National Natural Science Foundation of China[10804024] ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry ; Fundamental Research Funds for the Central Universities[HIT.NSRIF.2009056]
WOS Research AreaChemistry
WOS SubjectChemistry, Applied
WOS IDWOS:000298154500004
PublisherELSEVIER SCIENCE BV
Citation statistics
Cited Times:9[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/103985
Collection中国科学院金属研究所
Corresponding AuthorYang Mingzhu
Affiliation1.NE Petr Univ, Coll Elect Sci, Daqing 163000, Peoples R China
2.Harbin Inst Technol, Dept Phys, CCMST, Harbin 150001, Peoples R China
3.Acad Sinica, Int Ctr Mat Phys, Shenyang 110015, Peoples R China
4.Harbin Normal Univ, Dept Phys, Harbin 150001, Peoples R China
Recommended Citation
GB/T 7714
Yang Mingzhu,Sui Yu,Mu Haiwei,et al. Mechanism of upconversion emission enhancement in Y3Al5O12:Er3+/Li+ powders[J]. JOURNAL OF RARE EARTHS,2011,29(11):1022-1025.
APA Yang Mingzhu,Sui Yu,Mu Haiwei,Lu Shuchen,Wang Xianjie,&Lu Tianquan.(2011).Mechanism of upconversion emission enhancement in Y3Al5O12:Er3+/Li+ powders.JOURNAL OF RARE EARTHS,29(11),1022-1025.
MLA Yang Mingzhu,et al."Mechanism of upconversion emission enhancement in Y3Al5O12:Er3+/Li+ powders".JOURNAL OF RARE EARTHS 29.11(2011):1022-1025.
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