亲水性Yb^(3+)/Er^(3+)/Gd^(3+)共掺杂NaYF_4上转换纳米材料的制备和发光性能的研究  

Preparation and luminescent properties of hydrophilic NaYF_4∶Yb^(3+),Er^(3+),Gd^(3+) upconversion nanoparticle

作　　者：杨华玲[1] 原隽 邵明月[1] 商艳芳[1] 祁建峰[1] 韩丽玮[1] 

机构地区：[1]南通大学化学化工学院,江苏南通226019

出　　处：《东北师大学报（自然科学版）》2016年第3期94-98,共5页Journal of Northeast Normal University(Natural Science Edition)

基　　金：国家自然科学基金青年科学基金资助项目(21401109;21401110);江苏省教育厅自然科学基金资助项目(14KJB150019);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开放课题(RERU2016023)

摘　　要：在较低的温度下和超短的时间内,一步合成了以NaYF_4为基质掺杂Yb^(3+),Er^(3+)和Gd^(3+)的亲水性上转换纳米颗粒,并通过TEM和XRD对其进行了形貌表征和物相分析.最后对其发光性能进行了研究,发现该纳米颗粒在980nm激光的照射下,可发射出明亮的绿光.Upconversion nanoparticles have broad applications in molecular labeling as well as cellular and in vivo imaging.Up to now,it is still a challenge to develop cost-effective routes for the preparation of hydrophilic upconversion nanoparticles.Herein,we have successfully developed the onestep direct synthesis method to prepare Yb^3＋,Er^3＋,Gd^3＋ co-doped NaYF4 nanoparticles at lower temperature and in short reaction time.And then,we carry out morphology characterization and phase analysis by TEM and XRD.Finally,we also performed a spectroscopic study.The UC fluorescence of the colloidal solution excited with a 980 nm laser appears green in color.

关 键 词：上转化 稀土 纳米颗粒 

分 类 号：O611[理学—无机化学]