纳米荧光粉的二氧化硅核壳形成

D. Kotov, V. Koval, Dinh Thi Thuy Duong, So-Hye Cho
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引用次数: 1

摘要

介绍了芯壳结构Y2O3:Bi, Eu/SiO2纳米荧光粉的制备。采用尿素沉淀和退火法制备了Y2O3:Bi, Eu核心纳米荧光粉。采用改进的Stober法制备了硅壳,其厚度由TEOS的加入量控制。对核壳颗粒进行额外的热处理,以去除任何残留的杂质。通过扫描电镜(SEM)分析了芯和芯壳颗粒的尺寸和形状。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Silica core-shell formation of nanophosphors
Fabrication of core/shell-structured Y2O3:Bi, Eu/SiO2 nanophosphors was presented. The core nanophosphors, Y2O3:Bi, Eu, were synthesized by urea precipitation and annealing. The silica shell was formed by modified Stober method and its thickness was controlled by the amount of TEOS. Additional heat-treatment was applied on the core-shell particles in order to remove any residual impurities. Size and shape of core and core/shell particles were investigated by SEM analysis.
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