溶剂热法制备太阳电池用NaYF4：Yb^3＋，Er^3＋纳米上转换材料  

Optimized solvent-thermal preparation of NaYF_4:Yb^(3+),Er^(3+) up-conversion nanoparticles for application in solar cells

作　　者：刘永娟[1,2] 张晓丹[1] 王东丰[1] 张存善[2] 赵颖[1] 

机构地区：[1]南开大学光电子薄膜器件与技术研究所,南开大学光电子薄膜器件与技术天津市重点实验室,光电信息技术科学教育部重点实验室(南开大学,天津大学),天津300071 [2]河北工业大学信息工程学院,天津300130

出　　处：《材料研究学报》2009年第2期123-126,共4页Chinese Journal of Materials Research

基　　金：国家高技术研究发展计划2007AA052436;国家重点基础研究发展计划2006CB202602和2006CB202603;国家自然科学基金60506003;南开大学博士启动基金J02031;科技部国际合作重点2006DFA62390;教育部新世纪人才计划NCET-05-0227资助项目.~~

摘　　要：用溶剂热法合成Yb^(3+)、Er^(3+)共掺的NaYF_4纳米上转换材料,研究了去离子水、乙醇两种反应溶剂对材料性能的影响.用X射线衍射光谱、扫描电镜和荧光光谱等测试手段对材料性能进行了对比分析.结果表明:以乙醇为溶剂并加入一定比例的EDTA,所制备的上转换材料能发射较强的、可被太阳电池吸收的可见光.Nanoparticles of Yb^3＋, Er^3＋ -codoped sodium yttrium fluoride were prepared by solventthermal method. The properties of the prepared materials were characterized. The up-conversion lumines- cent properties of the NaYF4：Yb^3＋, Er^3＋ nanoparticles were investigated. The effect of deionized water and ethanol as reaction medium on the performance of the up-conversion materials was studied. The results showed that the up-conversion nanoparticles had relatively high up-conversion effect when ethanol was used as reaction medium and simultaneously ethylenediaminetetraacetic acid （EDTA） was also added. The up-conversion phosphors emit visible light which could be well utilized by solar cells.

关 键 词：无机非金属材料 溶剂 去离子水 乙醇 乙二胺四乙酸二钠(EDTA) 上转换 

分 类 号：TB321[一般工业技术—材料科学与工程]