Fluorescence Quantum Efficiency Enhancement in CaWO_4:Eu^(3+),Na^+ Nanocrystals by Tridoping with F^- Ions 被引量：1

Fluorescence Quantum Efficiency Enhancement in CaWO_4:Eu^(3+),Na^+ Nanocrystals by Tridoping with F^- Ions

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摘要 We demonstrated that tridoping with F- ions is an effective way to improve the fluorescence quantum efficiency of CaWO4:Eu3+,Na+ nanocrystals. F--tridoped samples with different F- concentrations were synthesized by a hydrothermal process. The fluorescence spectra and decay curves were measured at room temperature. The fluorescence intensity of F--tridoped samples is about 3 times that for the non F--doped sample. The fluorescence quantum efficiency can be enhanced by 21% when the atomic ratio of F to W was 0.7. We demonstrated that tridoping with F- ions is an effective way to improve the fluorescence quantum efficiency of CaWO4：Eu3＋,Na＋ nanocrystals. F--tridoped samples with different F- concentrations were synthesized by a hydrothermal process. The fluorescence spectra and decay curves were measured at room temperature. The fluorescence intensity of F--tridoped samples is about 3 times that for the non F--doped sample. The fluorescence quantum efficiency can be enhanced by 21% when the atomic ratio of F to W was 0.7.

作者张思念黄建华陈雨金龚兴红林炎富罗遵度黄艺东

机构地区 Key Laboratory of Optoelectronic Materials Chemistry and Physics Graduate University of Chinese Academy of Sciences

出处《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2013年第1期125-131,共7页 结构化学（英文）

基金 Supported by the National Natural Science Foundation of China(No.51002152) the Natural Science Foundation of Fujian Province(No.2010J05125)

关键词荧光量子效率纳米晶效率增强离子水热过程衰减曲线荧光光谱荧光强度 F--tridoped CaWO4：Eu3＋ Na＋ nanocrystal fluorescence property

分类号 O614.3 [理学—无机化学] TB383.1 [一般工业技术—材料科学与工程]

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