A Strategy to Achieve Efficient Dual-Mode Luminescence of Eu3+ in Lanthanides Doped Multifunctional NaGdF4 Nanocrystals
A Strategy to Achieve Efficient Dual-Mode Luminescence of Eu3+ in Lanthanides Doped Multifunctional NaGdF4 Nanocrystals
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稀土掺杂多功能 NaGdF4 纳米晶中实现 Eu3 高效双模发光的策略
DOI：
10.1002/adma.201000128
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发表时间：
2010-08-10
影响因子：
29.4
通讯作者：
Chen, Xueyuan
中科院分区：
文献类型：
--
作者：
Liu, Yongsheng;Tu, Datao;Chen, Xueyuan
提出了一种由NaGdF4:Yb3+、Tm3+核和NaGdF4:Eu3+壳组成的双模发光纳米晶的制备策略。通过采用不同的核壳纳米结构和Yb3+和Tm3+的双重敏化，实现了Gd3+的强烈下转换和Eu3+的上转换发光，比三掺核的对偶物高一个数量级。
A strategy is proposed to fabricate dual-mode luminescent NaGdF4 nanocrystals that are composed of NaGdF4:Yb3+,Tm3+ core and NaGdF4:Eu3+ shell. Intense downconversion via the sensitization of Gd3+ and upconversion luminescence of Eu3+ that is one order of magnitude higher than the triply-doped core only counterparts have been achieved by employing the distinct core/shell nanostructures and double sensitizations of Yb3+ and Tm3+.