人工晶体学报2009,Vol.38Issue(5):1211-1215,5.
均相共沉淀法制备氧化锌基红色荧光粉
Preparation of ZnO Nano-phosphor Powders by Homogeneous Co-precipitation Method
摘要
Abstract
The nano-phosphor powders of Eu, Li co-doped ZnO were prepared by homogeneous co-precipitation and thermal decomposition method using Zn(NO_3)_2·2H_2O,CO(NH_2)_2,Eu(NO_3)_3·6H_2O and LiNO_3·2H_2O as raw materials. The characteristics of samples were investigated by means of TG-DSC, XRD, SEM, FL. The results showed that the samples exhibited normal size distribution, whose size was about 20~40 nm. The photoluminescence intensity of samples was interrelated with thermal decomposition temperature, ratio of Li and Eu. The maximum emission spectra peak of samples was at λ_(em)=611 nm with 463 nm excitation, corresponding to ~5D_0→~7F_2 transition of Eu.关键词
均相共沉淀/ZnO/纳米/荧光Key words
homogeneous co-precipitation/ ZnO/ nanopowders/ photo luminescence分类
数理科学引用本文复制引用
胡文远,刘勋,杨定明,魏贤华..均相共沉淀法制备氧化锌基红色荧光粉[J].人工晶体学报,2009,38(5):1211-1215,5.基金项目
国家自然科学基金(No.50802078) (No.50802078)
西南科技大学青年预研基金项目(06ZX3129) (06ZX3129)