Preparation and Up-Conversion Luminescence of Hollow La(2)O(3):Ln (Ln = Yb/Er, Yb/Ho) Microspheres
文献类型：期刊论文
| 作者 | He F ; Yang PP ; Wang D ; Li CX ; Niu N ; Gai SL ; Zhang ML |
| 刊名 | langmuir
 |
| 出版日期 | 2011 |
| 卷号 | 27期号:9页码:5616-5623 |
| 关键词 | CARBON NANOSPHERES SPHERICAL COLLOIDS Y2O3 NANOCRYSTALS FACILE SYNTHESIS WHITE-LIGHT SPHERES PARTICLES EFFICIENT ROUTE PHOTOLUMINESCENCE |
| ISSN号 | 0743-7463 |
| 通讯作者 | yang pp |
| 中文摘要 | hollow la(2)o(3):ln (ln = yb/er, yb/ho) microspheres with up-conversion (uc) luminescence properties were successfully synthesized via a facile sacrificial template method by employing carbon spheres as hard templates followed by a subsequent heating process. the structure, morphology, formation process, and fluorescent properties are well investigated by various techniques. the results indicate that the hollow la(2)o(3):ln microspheres can be well indexed to the hexagonal la(2)o(3) phase. the hollow la(2)o(3):ln microspheres with uniform diameter of about 270 nm maintain the spherical morphology and good dispersion of the carbon spheres template. the shell of the hollow microspheres consists of numerous nanocrystals with the thickness of approximately 40 nm. moreover, the possible formation mechanism of evolution from the carbon spheres to the amorphous precursor and to the final hollow la(2)o(3):ln microspheres has also been proposed. the yb/er and yb/ho codoped la(2)o(3) hollow spheres exhibit bright up-conversion luminescence with different colors derived from different activators under the 980 nm nir laser excitation. furthermore, the doping concentration of the yb(3+) is optimized under fixed concentration of er(3+)/ho(3+). this material may find potential applications in drug delivery, hydrogen and li ion storage, and luminescent displays based on the uniform hollow structure, dimension, and uc luminescence properties. |
| 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/322003/44648]  |
| 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 | He F,Yang PP,Wang D,et al. Preparation and Up-Conversion Luminescence of Hollow La(2)O(3):Ln (Ln = Yb/Er, Yb/Ho) Microspheres[J]. langmuir,2011,27(9):5616-5623. |
| APA | He F.,Yang PP.,Wang D.,Li CX.,Niu N.,...&Zhang ML.(2011).Preparation and Up-Conversion Luminescence of Hollow La(2)O(3):Ln (Ln = Yb/Er, Yb/Ho) Microspheres.langmuir,27(9),5616-5623. |
| MLA | He F,et al."Preparation and Up-Conversion Luminescence of Hollow La(2)O(3):Ln (Ln = Yb/Er, Yb/Ho) Microspheres".langmuir 27.9(2011):5616-5623. |
入库方式： OAI收割
来源：长春应用化学研究所
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