Crystalline-structure-dependent green and red upconversion emissions of Er(3+)-Yb(3+)-Li(+) codoped TiO(2)
文献类型：期刊论文
| 作者 | Cao BS ; He YY ; Feng ZQ ; Song M ; Dong B |
| 刊名 | optics communications
 |
| 出版日期 | 2011 |
| 卷号 | 284期号:13页码:3311-3314 |
| 关键词 | NANOCRYSTALS ER3+ LUMINESCENCE IONS LI+ |
| ISSN号 | 0030-4018 |
| 通讯作者 | dong b |
| 中文摘要 | crystalline structures and infrared-to-visible upconversion luminescence spectra have been investigated in 1 mol% er(3+), 10 mol% yb(3+) and 0-20 mol% li(+) codoped tio(2) [1er10yb(0-20)li:tio(2)] nanocrystals. the crystalline structures of 1er10yb(0-20)li:tio(2) were divided into three parts by the addition of yb(3+) and li(+). both green and red upconversion emissions were observed from the (2)h(11/2)/(4)s(3/2) -> (4)i(15/2) and (4)f(9/2) -> (4)i(15/2) transitions of er(3+) in er(3+)-yb(3+)-li(+) codoped tio(2), respectively. the green and red upconversion emissions of 1er:tio(2) were enhanced significantly by yb(3+) and li(+) codoping, in which the intensities of green and red emissions and the intensity ratio of green to red emissions (i(green)/i(red)) were highly dependent on the crystalline structures. the significant enhanced upconversion emissions resulted from the energy migration between er(3+) and yb(3+) as well as the distortion of crystal field symmetry of er(3+) caused by the dissolving of li(+) at lower li(+) codoping concentration and the phase transformation at higher li(+) concentration. it is concluded that codoping with ions of smaller ionic radius like li(+) can efficiently improve the upconversion emissions of er(3+) or other rare-earth ions doped luminsecence materials. (c) 2011 elsevier b.v. all rights reserved. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| 公开日期 | 2012-06-11 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/44573]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Cao BS,He YY,Feng ZQ,et al. Crystalline-structure-dependent green and red upconversion emissions of Er(3+)-Yb(3+)-Li(+) codoped TiO(2)[J]. optics communications,2011,284(13):3311-3314. |
| APA | Cao BS,He YY,Feng ZQ,Song M,&Dong B.(2011).Crystalline-structure-dependent green and red upconversion emissions of Er(3+)-Yb(3+)-Li(+) codoped TiO(2).optics communications,284(13),3311-3314. |
| MLA | Cao BS,et al."Crystalline-structure-dependent green and red upconversion emissions of Er(3+)-Yb(3+)-Li(+) codoped TiO(2)".optics communications 284.13(2011):3311-3314. |
入库方式： OAI收割
来源：长春应用化学研究所
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