期刊
JOURNAL OF NON-CRYSTALLINE SOLIDS
卷 353, 期 5-7, 页码 510-513出版社
ELSEVIER
DOI: 10.1016/j.jnoncrysol.2006.10.051
关键词
optical properties; photoluminescence
We investigated the correlation between the luminescence properties and the surface structures of submicron silica particles prepared by the Stober method. After annealing in a non-oxidizing atmosphere, the submicron-sized silica particles show a broad photoluminescence (PL) band at 500-540 nm by excitation at an ultraviolet wavelengths (254 and 365 nm), and the one at the 600 nm by excitation an Ar+ laser (488 nm). The PL appeared to result from the removal of impurities and subsequent formation of several luminescent structures on the internal surface of the primary particles by thermal annealing. (c) 2007 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据