Correlation between the luminescence properties and the surface structures of submicron silica particles

被引：8

作者：

Inai, Seiichiro ^{[1
]}

Harao, Akira ^{[1
]}

Nishikawa, Hiroyuki ^{[1
]}

机构：

[1] Shibaura Inst Technol, Dept Elect Engn, Kouto Ku, Tokyo 1358548, Japan

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 2007年 / 353卷 / 5-7期

关键词：

optical properties; photoluminescence;

D O I：

10.1016/j.jnoncrysol.2006.10.051

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

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.

引用

页码：510 / 513

页数：4

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