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Influence of Ag nanoparticles on luminescent performance of SiO2:Tb3+ nanomaterials
Zhang, Dekai1,2; Hu, Xiaoyun1,2; Ji, Ruonan1; Zhan, Suchang1; Gao, Jianhua1,2; Yan, Zhiyun1; Liu, Enzhou3; Fan, Jun3; Hou, Xun1,4
作者部门瞬态光学技术国家重点实验室
2012-10-01
发表期刊JOURNAL OF NON-CRYSTALLINE SOLIDS
ISSN0022-3093
卷号358期号:20页码:2788-2792
产权排序4
摘要

Tb3+ single-doped SiO2 (SiO2:Tb3+) and Tb3+, Ag co-doped SiO2 (SiO2:Tb3+-Ag) nanostructured luminescent materials were prepared by a modified Stober method. Their microstructure and optical property were investigated using scanning electron microscopy, ultraviolet visible absorption and photoluminescence spectrophotometry. Results show that the samples are composed of well-dispersed near-spherical particles with a diameter about 50 nm, the highest fluorescence intensity is obtained when the doping concentration of Tb3+ is 4.86 mol%, the corresponding internal quantum efficiency is 13.6% and the external quantum efficiency is 8.2%. The experimental results indicate that Ag nanoparticles can greatly enhance the light absorption at 226 nm and the light emission at 543 nm of SiO2:Tb3+-Ag, and the fluorescence lifetime reduces with increasing Ag concentration in SiO2:Tb3+-Ag. Additionally, the present results indicate that fluorescence enhancement is attributed to the local field enhancement and the increased radiative decay rates induced by Ag nanoparticles. (c) 2012 Elsevier B.V. All rights reserved.

文章类型Article
关键词Rare Earth Doping Localized Surface Plasmon Resonance Radiative Decay Rates Luminescence
WOS标题词Science & Technology ; Technology
DOI10.1016/j.jnoncrysol.2012.07.004
收录类别SCI ; EI
关键词[WOS]SILVER ISLAND FILMS ; ENERGY-TRANSFER ; ENHANCED FLUORESCENCE ; RESONANCE ; SPHERES ; EU3+
语种英语
WOS研究方向Materials Science
WOS类目Materials Science, Ceramics ; Materials Science, Multidisciplinary
WOS记录号WOS:000309647400010
引用统计
被引频次:18[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.opt.ac.cn/handle/181661/24021
专题瞬态光学研究室
作者单位1.NW Univ Xian, Dept Phys, Xian 710069, Peoples R China
2.NW Univ Xian, Natl Photoelect Technol & Funct Mat & Applicat Sc, Xian 710069, Peoples R China
3.NW Univ Xian, Sch Chem Engn, Xian 710069, Peoples R China
4.Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Technol, Xian 710068, Peoples R China
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GB/T 7714
Zhang, Dekai,Hu, Xiaoyun,Ji, Ruonan,et al. Influence of Ag nanoparticles on luminescent performance of SiO2:Tb3+ nanomaterials[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2012,358(20):2788-2792.
APA Zhang, Dekai.,Hu, Xiaoyun.,Ji, Ruonan.,Zhan, Suchang.,Gao, Jianhua.,...&Hou, Xun.(2012).Influence of Ag nanoparticles on luminescent performance of SiO2:Tb3+ nanomaterials.JOURNAL OF NON-CRYSTALLINE SOLIDS,358(20),2788-2792.
MLA Zhang, Dekai,et al."Influence of Ag nanoparticles on luminescent performance of SiO2:Tb3+ nanomaterials".JOURNAL OF NON-CRYSTALLINE SOLIDS 358.20(2012):2788-2792.
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