| Studies on Upconversion Mechanism of ZrO2 ： Er^3＋, Yb^3＋ Nanocrystals Under Excitation at 488 and 980 nm |
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| 作者姓名： | JIARuo-kun JIANWen-ping GUOWei SHANGui-ye LUeQian LIUZhao-yue BAIYu-bai LITie-jin KONGXiang-gu |
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| 作者单位： | [1]CollegeofChemistry,JilinUniversity,Changchun130023,P.R.China [2]InstituteofOptics,FineMechanicsandPhysics,ChineseAcademyofSciences,Changchun130021,P.R.China |
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| 基金项目： | Supported by the National Natural Science Foundation of China(No.20073016 and 60271020), state 863 Projects(No.2002AA302203) and state 973 Projects(No.G1999064504). |
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| 摘 要： | Erbium, Ytterbium-codoped ZrO2 nanoparticles(ZrO2:Er^3 ,Yb^3 ) were prepared by the sol-emulsiongel technique. The purpose of the present study is the application of upconversion phosphor in the biological label. In order to make out the mechanism of upconversion under 980 nm excitation the 488 nm pump was used. The influence of temperature on the crystallite phase was studied. The results confirm the upconverted mechanism in ZrO2:Er^3 ,Yb^3 nanocrystals is due to an energy transfer upconversion(ETU).
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| 关 键 词： | 二氧化锆 能量上转换作用 作用机理 铒离子 镱离子 掺杂 纳米晶体 生物标记 溶胶乳化技术 |
| 收稿时间： | 2002-12-12 |
Studies on Upconversion Mechanism of ZrO2:Er3+,Yb3+ Nanocrystals Under Excitation at 488 and 980 nm |
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| JIARuo-kun JIANWen-ping GUOWei SHANGui-ye LUeQian LIUZhao-yue BAIYu-bai LITie-jin KONGXiang-gu.Studies on Upconversion Mechanism of ZrO2:Er3+,Yb3+ Nanocrystals Under Excitation at 488 and 980 nm[J].Chemical Research in Chinese University,2004,20(6):781-784. |
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| Authors: | JIA Ruo-kun JIAN Wen-ping GUO Wei SHAN Gui-ye L&# Qian LIU Zhao-yue BAI Yu-bai LI Tie-jin KONG Xiang-gu |
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| Institution: | 1. College of Chemistry, Jilin University, Changchun 130023, P. R. China;
2. Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130021, P. R. China |
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| Abstract: | Erbium, Ytterbium-codoped ZrO2 nanoparticles(ZrO2:Er3+,Yb3+) were prepared by the sol-emulsion-gel technique. The purpose of the present study is the application of upconversion phosphor in the biological label. In order to make out the mechanism of upconversion under 980 nm excitation the 488 nm pump was used. The influence of temperature on the crystallite phase was studied. The results confirm the upconverted mechanism in ZrO2:Er3+,Yb3+ nanocrystals is due to an energy transfer upconversion(ETU). |
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| Keywords: | Upconversion ZrO2：Er3+ Yb3+ Biological label |
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