| Upconversion Luminescence Properties of Ho^3＋, Tm^3＋, Yb^3＋ Co-Doped Nanocrystal NaYF4 Synthesized by Hydrothermal Method |
| |
| 引用本文： | 杨魁胜,李岩,余朝义,卢利平,叶灿华,张希艳.Upconversion Luminescence Properties of Ho^3＋, Tm^3＋, Yb^3＋ Co-Doped Nanocrystal NaYF4 Synthesized by Hydrothermal Method[J].中国稀土学报(英文版),2006,24(6):757-760. |
| |
| 作者姓名： | 杨魁胜 李岩 余朝义 卢利平 叶灿华 张希艳 |
| |
| 作者单位： | School of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China |
| |
| 基金项目： | the Key Laboratory of Rare Earth Chemistry and Physics，Changchun Institute of Applied Chemistry，中国科学院基金 |
| |
| 摘 要： | Nanocrystal of upconversion （UC） phosphor Ho^3＋, Tm^3＋ , and Yb^3＋ co-doped NaYF4 was prepared by the hydrothermal method in the presence of the complexing agent EDTA. Under 980 nm diode laser excitation, the impact of different concentrations of Ho^3＋ ion on the UC luminescence intensity was discussed. The law of luminescence intensity versus pump power shows that the 474 nm blue emission, 538 nm green emission, and 642 nm red emission are all due to the two-photon process, while the 450 nm blue emission is a three-photon process. The UC mechanism and processes were also analyzed. The sample was characterized by transmission electron microscopy （TEM） and X-ray diffraction （XRD）. The result shows that Ho^3＋ ,Tm^3＋ , and Yb^3＋ co-doped NaYF4 prepared by the hydrothermal method exhibits a hexagonal nanocrystal.
|
| 关 键 词： | NaYF4∶Ho3 Tm3 Yb3 |
| 文章编号： | 1002-0721（2006）06-0757-04 |
| 收稿时间： | 2006-06-26 |
| 修稿时间： | 2006-09-10 |
Upconversion Luminescence Properties of Ho, Tm, Yb Co-Doped Nanocrystal NaYF4 Synthesized by Hydrothermal Method |
| |
| Yang , Li Yan, Yu Chaoyi, Lu Liping, Ye Chanhua,Zhang Xiyan.Upconversion Luminescence Properties of Ho, Tm, Yb Co-Doped Nanocrystal NaYF4 Synthesized by Hydrothermal Method[J].Journal of Rare Earths,2006,24(6):757-760. |
| |
| Authors: | Yang Li Yan Yu Chaoyi Lu Liping Ye Chanhua Zhang Xiyan |
| |
| Affiliation: | aSchool of Materials Science and Engineering, Changchun University of Science and Technology, Changchun 130022, China |
| |
| Abstract: | Nanocrystal of upconversion (UC) phosphor Ho3 , Tm3 , and Yb3 co-doped NaYF4 was prepared by the hydrothermal method in the presence of the complexing agent EDTA. Under 980 nm diode laser excitation, the impact of different concentrations of Ho3 ion on the UC luminescence intensity was discussed. The law of luminescence intensity versus pump power shows that the 474 nm blue emission, 538 nm green emission, and 642 nm red emission are all due to the two-photon process, while the 450 nm blue emission is a three-photon process. The UC mechanism and processes were also analyzed. The sample was characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). The result shows that Ho3 , Tm3 , and Yb3 co-doped NaYF4 prepared by the hydrothermal method exhibits a hexagonal nanocrystal. |
| |
| Keywords: | hydrothermal method upconversion EDTA Nanocrystal rare earths |
| 本文献已被 CNKI 维普 万方数据 ScienceDirect 等数据库收录！ |
|
