LaF3:Yb^3+/Tm^3+、LaF3:Yb^3+/Ho^3+亚微米晶体的制备及表征  

Preparation and Characterization of LaF3:Yb^3+/Tm^3+,LaF3:Yb^3+/Ho^3+Submicron Crystals

作　　者：康庭缘 杨旭 黄雨欣 慈新欣 乔可 吴渊 KANG Ting-yuan;YANG Xu;HUANG Yu-xin;CI Xin-xin;QIAO Ke;WU Yuan(College of Life Science,Dalian Minzu University,Liaoning Dalian 116600,China)

机构地区：[1]大连民族大学生命科学学院,辽宁大连116600

出　　处：《广州化工》2020年第24期39-40,49,共3页GuangZhou Chemical Industry

基　　金：大连民族大学2020年国家级大学生创新创业训练计划项目(202012026014)。

摘　　要：采用一步的离子热方法,以离子液体BmimBF4作为反应介质,成功制备了LaF3:Yb^3+/Tm^3+、LaF3:Yb^3+/Ho^3+自组装亚微米序列。产物发生了自组装现象,形成了类似于糖葫芦状的有趣形貌。研究发现,反应时间、反应温度、溶剂组成和混合溶剂中离子液体与水的比例等实验参数对最后产物的形貌有极大影响。这种材料具有理想的自组装形貌、良好的水分散性和明亮的上转换发光,因此使得它在生物标记和显示等领域具有潜在的应用。A one-pot ionothermal method was used to synthesize LaF3:Yb^3+/Tm^3+,LaF3:Yb^3+/Ho^3+self-assembly submicroarrays using BmimBF 4 as reaction medium.The as-obtained products self-assembled into the aligned arrays like a string of pearls.The effects of reaction temperature,reaction time,solvent composition and the volume ratio of ionic liquid(IL)/water in the mixed solvent on the size and morphology of the products were investigated.The uniform self-assembling morphology and bright UC luminescence made this material a promising candidate for multiple displaying and lightemitting diodes.

关 键 词：离子热 LaF3:Yb^3+/Tm^3+ LaF3:Yb^3+/Ho^3+ 

分 类 号：G642[文化科学—高等教育学]