静电纺丝方法制备CaTiO3:Er3+微米带及其上转换发光性质

应用化学, 2012, 29(12): 1438-1446. doi: 10.3724/SP.J.1095.2012.20429

静电纺丝方法制备CaTiO3:Er3+微米带及其上转换发光性质

彭冲 ^1, , 杨冬梅 ^2, , 李国岗 ^3, , 连洪州 ^4, , 林君 ^5,

1.中国科学院长春应用化学研究所,稀土资源利用国家重点实验室长春130022;中国科学院大学北京100049

2.中国科学院长春应用化学研究所,稀土资源利用国家重点实验室长春130022;中国科学院大学北京100049

3.中国科学院长春应用化学研究所,稀土资源利用国家重点实验室长春130022;中国科学院大学北京100049

4.中国科学院长春应用化学研究所,稀土资源利用国家重点实验室长春,130022

5.中国科学院长春应用化学研究所,稀土资源利用国家重点实验室长春,130022

基金项目: National Natural Science Foundation(51172227,20921002)

关键词：上转换 , 静电纺丝 , 微米带 , 铒

Electrospinning Fabrication and Upconversion Luminescent Properties of CaTiO3:Er3+ Microbelts

Keywords： upconversion , electrospinning , microbelts , erbium

CaTiO3:Er3+微米带由静电纺丝方法制备.用X射线衍射、傅里叶变换红外光谱、拉曼光谱、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、高分辨透射电子显微镜(HRTEM)和上转换发光表征所制备的样品.SEM和TEM测试证实所得前躯体微米带尺寸均一,烧后得到的微米带是由纳米粒子组成的.在980 nm激光激发下,CaTiO3:Er3样品发出绿光,绿光发射峰位于546 nm,可归属于Er3+离子的4S3/2 →4I15/2跃迁.当Er3+离子的掺杂浓度提高,因为Er3+离子之间的能量传递,红光发射相对于绿光发射增强.

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