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Zr4+掺杂对Er3+/Yb3+共掺NaYF4微晶晶相和发光性能的影响

Influence of Zr4+ Doping Impurity on Crystal Phase and Upconversion Luminescence of Er3+/Yb3+ Codoped NaYF4 Microcrystals

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摘要

采用油酸辅助的水热法制备了Er3+/Yb3+共掺NaYF4微晶, 通过在反应体系中引入Zr4+离子, 实现了NaYF4微晶的晶相控制和上转换发光增强。X-射线衍射和扫描电镜结果表明: Zr4+离子的引入能够明显加快立方相α-NaYF4向六方相β-NaYF4的相转变过程。当Zr4+离子的引入摩尔分数为5%时, 获得了纯的六方相β-NaYF4微晶。 Er3+/Yb3+共掺NaYF4微晶在980 nm激光泵浦下, 观察到强的上转换绿光和红光发射, 且上转换发光强度随着Zr4+离子添加量的增加逐渐增大。

Abstract

Er3+/Yb3+ codoped NaYF4 microcrystals were prepared via a facile hydrothermal approach assisted with oleic acid. The cubic-to-hexagonal phase transition and enhancement of up-conversion luminescence of Er3+ ions were simultaneously achieved by the gradual addition of Zr4+ ions in the reaction system. X-ray diffraction and SEM results indicated that the introduction of Zr4+ ions could remarkably accelerate the cubic-to-hexagonal phase transition process and pure hexagonal NaYF4 microcrystals were obtained, when Zr4+ mole fraction reached 5%. Strong green and red up-conversion luminescence of Er3+ ions was observed and the up-conversion intensity increased gradually with the addition of Zr4+ ions.

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中图分类号:O482.31

DOI:10.3788/fgxb20143505.0565

所属栏目:材料合成及性能

基金项目:国家自然科学基金(51372236); 浙江省自然科学基金(Y4110621)资助项目

收稿日期:2014-01-04

修改稿日期:2014-01-27

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郭子轩:中国计量学院 材料科学与工程学院, 浙江 杭州310018
赵士龙:中国计量学院 材料科学与工程学院, 浙江 杭州310018
黄立辉:中国计量学院 材料科学与工程学院, 浙江 杭州310018
陈水林:中国计量学院 材料科学与工程学院, 浙江 杭州310018
夹国华:中国计量学院 材料科学与工程学院, 浙江 杭州310018
徐时清:中国计量学院 材料科学与工程学院, 浙江 杭州310018

联系人作者:郭子轩(guoguoguo2016@sina.com)

备注:郭子轩(1988-), 男, 山东寿光人, 硕士研究生, 2010年于山东师范大学获得学士学位, 主要从事稀土掺杂纳米发光材料及薄膜的研究。

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引用该论文

GUO Zi-xuan,ZHAO Shi-long,HUANG Li-hui,CHEN Shui-lin,JIA Guo-hua,XU Shi-qing. Influence of Zr4+ Doping Impurity on Crystal Phase and Upconversion Luminescence of Er3+/Yb3+ Codoped NaYF4 Microcrystals[J]. Chinese Journal of Luminescence, 2014, 35(5): 565-569

郭子轩,赵士龙,黄立辉,陈水林,夹国华,徐时清. Zr4+掺杂对Er3+/Yb3+共掺NaYF4微晶晶相和发光性能的影响[J]. 发光学报, 2014, 35(5): 565-569

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