Energy transfer from Eu2+ to Mn2+ in M-5(PO4)(3)Cl (M = Ca, Sr)
文献类型：期刊论文
| 作者 | Yang, Fengli1,2,3,4; An, Wei5; Zhuang, Weidong1,2; Tian, Guang-Shan5; Jing, Xi-Ping3 |
| 刊名 | JOURNAL OF LUMINESCENCE
 |
| 出版日期 | 2014-02-01 |
| 卷号 | 146页码:269-274 |
| 关键词 | Phosphors For Led Energy Transfer eu2+-mn2+ Co-doping Chlorophosphates |
| ISSN号 | 0022-2313 |
| DOI | 10.1016/j.jlumin.2013.10.003 |
| 英文摘要 | M4.95-y(PO4)(3)Cl:0.05Eu(2+), yMn(2+) (m = Ca, Sr) phosphors were synthesized at 1200 degrees C under a reductive atmosphere. The energy transfer mechanism and efficiency (eta) from Eu2+ to Mn2+ as well as the quantum efficiency (Q) of the Mn2+ emission were analyzed using PL spectra and decay curves. Least squares fittings of the Eu2+ decay curves indicate that the energy transfer from Eu2+ to Mn2+ follows the exchange mechanism in the Sr system, while besides exchange mechanism other complicated quenching processes are involved in the Ca system. Superficially the eta is high but the Q is low, which implies some energy loss. Two quenching models representative of an "inverse bottleneck process", which is related to the lifetime mismatch between Eu2+ and Mn2+, and a "charge transfer process" in the Eu2+-Mn2+ clusters, are proposed. The results may provide some clues for designing excellent sensitizer and activator co-doped phosphors in our further work. (C) 2013 Elsevier B.V. All rights reserved. |
| 语种 | 英语 |
| WOS记录号 | WOS:000330089600044 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/53117]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Zhuang, Weidong |
| 作者单位 | 1.Gen Res Inst Nonferrous Met, Natl Engn Res Ctr Rare Earth Mat, Beijing 100088, Peoples R China 2.Grirem Adv Mat Co Ltd, Beijing 100088, Peoples R China 3.Peking Univ, Coll Chem & Mol Engn, State Key Lab Rare Earth Mat & Applicat, Beijing Natl Lab Mol Sci, Beijing 100871, Peoples R China 4.Jiangxi Univ Sci & Technol, Sch Met & Chem Engn, Ganzhou 341000, Jiangxi, Peoples R China 5.Peking Univ, Sch Phys, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang, Fengli,An, Wei,Zhuang, Weidong,et al. Energy transfer from Eu2+ to Mn2+ in M-5(PO4)(3)Cl (M = Ca, Sr)[J]. JOURNAL OF LUMINESCENCE,2014,146:269-274. |
| APA | Yang, Fengli,An, Wei,Zhuang, Weidong,Tian, Guang-Shan,&Jing, Xi-Ping.(2014).Energy transfer from Eu2+ to Mn2+ in M-5(PO4)(3)Cl (M = Ca, Sr).JOURNAL OF LUMINESCENCE,146,269-274. |
| MLA | Yang, Fengli,et al."Energy transfer from Eu2+ to Mn2+ in M-5(PO4)(3)Cl (M = Ca, Sr)".JOURNAL OF LUMINESCENCE 146(2014):269-274. |
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来源：化学研究所
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