发光学报Issue(7):751-756,6.DOI:10.3788/fgxb20153607.0751
GdBO3:Pr3+,Yb3+中Pr3+到Yb3+的能量传递及发光性质
Luminescence Properties and Energy Transferfrom Pr3 +to Yb3+in GdBO3:Pr3+,Yb3+
摘要
Abstract
GdBO3∶Pr3+ and GdBO3∶Pr3+, Yb3+ samples were prepared by solid state reaction at high temperature. XRD patterns, excitation spectra and emission spectra in the Vis-NIR range of the obtained samples were studied in detail at room temperature. The emission of 2 F5/2→2 F7/2 (980 nm) of Yb3+ was observed under 446 nm excitation, indicating the occurrence of the energy transfer from Pr3+ to Yb3+. The fluorescence intensities varied with different Yb3+doping concentrations. Lumi-nescence decay curves of Pr3+:3 P0 level were recorded as a function of the Yb3+ concentrations and energy transfer efficiency was also calculated. Based on Inokuti-Hirayama model, the energy transfer type from Pr3+ to Yb3+was derived to be electric dipole-dipole interaction.关键词
近红外发光/能量传递/稀土离子/GdBO3Key words
near infrared/energy transfer/rare earth ions/GdBO3分类
数理科学引用本文复制引用
朱凡,由芳田,时秋峰,彭洪尚,黄世华..GdBO3:Pr3+,Yb3+中Pr3+到Yb3+的能量传递及发光性质[J].发光学报,2015,(7):751-756,6.基金项目
国家自然科学基金(11274038)资助项目 (11274038)