Controlling synthesis and host sensitized Eu^(3+) emissions of K_5Gd_9F_(32) and GdF_3

查看全文 作　　者：XIE [1]An;CAO [1,2]ChunYan;CAO [2]RenPing;NOH [3]HyeonMi;JEONG [3]JungHyun

机构地区：[1]School of Materials Science and Engineering, Xiamen University of Technology;[2]College of Mathematics and Physics, Jinggangshan University;[3]Department of Physics, Pukyong National University

出　　处：《Science China(Technological Sciences)》索引2015年第58卷第5期,共8页

基　　金：supported by the National Natural Science Foundation of China(Grant Nos.61205217,11204258,and 11464021);Natural Science Foundation of Jiangxi Province of China(Grant No.20142BAB202003);Foundation of Jiangxi Educational Committee of China(Grant Nos.GJJ14564 and GJJ14565);High-level Talent Project of Xiamen University of Technology(Grant No.YKJ14031R);Foreign Cooperation Project of Xiamen University of Technology(Grant No.E2014223007);National Science Foundation for Distinguished Young Scholars of Fujian Province(Grant No.2012J06024);the Outstanding Young Scientific Research Personnel Training Plan in Colleges and Universities of Fujian Province(Grant No.JA13229);supported by the Basic Science Research Program through the National Research Foundation of Korea(NRF)funded by the Ministry of Science,ICT and Future Planning(Grant No.2013012655) 摘　　要：By controlling the reactant ratios, hydrothermal time, hydrothermal temperatures, p H values of the prepared solutions, and the concentrations of K3C6H5O7·2H2O, 1 mol% Eu3+ doped cubic phase of K5Gd9F32 and/or orthorhombic phase of Gd F3 micro/nanocrystals have been synthesized based on a hydrothermal method. For comparison, the sample was also synthesized by a co-precipitation method. The samples were characterized by X-ray diffraction(XRD) patterns, field emission scanning electron microscopy(FE-SEM) images, energy-dispersive spectroscopy(EDS) spectra, and photoluminescence(PL) excitation and emission spectra. By host Gd3+ sensitizing, the Eu3+ presents relatively strong emissions. The energy transfers from host Gd3+ to doping Eu3+ are observed in all the samples and the energy transfer plays an important role in the emission of Eu3+. Acting as a probe, the Eu3+ presents its distinct optical properties in the samples. 关键词：控制合成铕掺杂场发射扫描电子显微镜主机排放 FE-SEM 水热温度能量转移

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Controlling synthesis and host sensitized Eu^(3+) emissions of K_5Gd_9F_(32) and GdF_3

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