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Studies on Upconversion Mechanism of ZrO_2∶Er^(3+),Yb^(3+) Nanocrystals Under Excitation at 488 and 980 nm 被引量:2
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作者 JIARuo-kun JIANWen-ping +6 位作者 GUOWei SHANGui-ye lueqian LIUZhao-yue BAIYu-bai LITie-jin KONGXiang-gu 《Chemical Research in Chinese Universities》 SCIE CAS CSCD 2004年第6期781-784,共4页
Erbium, Ytterbium-codoped ZrO 2 nanoparticles(ZrO 2∶Er 3+ ,Yb 3+ ) were prepared by the sol-emulsion-gel technique. The purpose of the present study is the application of upconversion phosphor in the biolog... Erbium, Ytterbium-codoped ZrO 2 nanoparticles(ZrO 2∶Er 3+ ,Yb 3+ ) 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 ZrO 2∶Er 3+ ,Yb 3+ nanocrystals is due to an energy transfer upconversion(ETU). 展开更多
关键词 UPCONVERSION ZrO 2∶Er 3+ Yb 3+ Biological label
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