| 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 Author | Yang Mingzhu(yangmingzhu0000@163.com) |
| 2011-11-01 | |
| Source Publication | JOURNAL OF RARE EARTHS
 |
| ISSN | 1002-0721 |
| Volume | 29Issue:11Pages:1022-1025 |
| Abstract | Er3+ 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. |
| Keyword | luminescence optical materials and properties sol-gel preparation nanomaterials rare earths |
| Funding Organization | National Natural Science Foundation of China ; Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry ; Fundamental Research Funds for the Central Universities |
| DOI | 10.1016/S1002-0721(10)60590-X |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | National 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 Area | Chemistry |
| WOS Subject | Chemistry, Applied |
| WOS ID | WOS:000298154500004 |
| Publisher | ELSEVIER SCIENCE BV |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/103985 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Yang Mingzhu |
| Affiliation | 1.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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