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Na3ZrF7:Er/Yb纳米颗粒的合成及荧光性能研究
引用本文:庾名槐,王广盛,叶帅,宋军,屈军乐. Na3ZrF7:Er/Yb纳米颗粒的合成及荧光性能研究[J]. 人工晶体学报, 2017, 46(9): 1691-1696
作者姓名:庾名槐  王广盛  叶帅  宋军  屈军乐
作者单位:深圳大学光电工程学院,光电子器件与系统教育部/广东省重点实验室,深圳518060;海南大学材料与化工学院,海口 570228;深圳大学光电工程学院,光电子器件与系统教育部/广东省重点实验室,深圳518060
基金项目:深圳市科技计划项目(JCYJ20150324141711561),国家自然科学基金青年项目(61605124)
摘    要:采用热分解法制备多种核壳结构的Na3ZrF7:Er/Yb纳米颗粒,并对制备的上转换纳米颗粒的形貌、晶相以及发光特性进行研究.在980nm激发光激发下,与单核的Na3ZrF7:Er3+2;,Yb3+20;纳米颗粒相比,核壳结构的Na3ZrF7:Er3+2;,Yb3+20;@CaF2上转换纳米颗粒荧光强度提高了5倍.把Yb3+/Nd3+共掺的四方相NaYF4层包覆在Na3ZrF7:Er3+2;,Yb3+20;@CaF2纳米颗粒上,我们实现了Na3ZrF7@CaF2@NaYF4纳米颗粒在808nm激发下较强的上转换红光发射,发射光的红绿比在10左右,并对其发光机制作出了解释.

关 键 词:上转换纳米颗粒  Na3ZrF7:Yb/Er  核壳结构  荧光强度,

Synthesis and Photoluminescence of Na3 ZrF7:Er/Yb Nanoparticles
YU Ming-huai,WANG Guang-sheng,YE Shuai,SONG Jun,QU Jun-le. Synthesis and Photoluminescence of Na3 ZrF7:Er/Yb Nanoparticles[J]. Journal of Synthetic Crystals, 2017, 46(9): 1691-1696
Authors:YU Ming-huai  WANG Guang-sheng  YE Shuai  SONG Jun  QU Jun-le
Abstract:In this paper, Na3ZrF7:Er/Yb nanoparticles (NPs) with core-shell structures were prepared by pyrolytic process , the morphologies , phase and emission spectra of all samples were analyzed .The emission intensity of the Na 3 ZrF7:Er3+2%, Yb3 +20%@CaF2 NPs was enhanced 5 times compared with that of Na3 ZrF7:Er3 +2%, Yb3 +20% under excitation of 980 nm.By coating the tetragonal Yb/Nd codoped NaYF4 on Na3 ZrF7:Er3 +2%, Yb3 +20%@CaF2 NPs, strongly upconverted red emissions of Na3 ZrF7@CaF2@NaYF4 NPs excited by an 808 nm laser were achieved , the red/green emission ratio approached a value of 10, the luminescence mechanism were elucidated .
Keywords:upconversion nanoparticle  Na3 ZrF7:Yb/Er  core-shell structure  emission intensity
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