Photoluminescence studies of stilbene laser dye incorporated mesoporous silica nanoparticle (MSN) with sulphur dioxide

被引：0
|
作者：
Surbhi Kumari
P. D. Sahare
机构：
[1] University of Delhi,Department of Physics and Astrophysics
来源：
Journal of Porous Materials | 2014年 / 21卷
关键词：
Mesoporous nano silica; Fluorescence sensitization; Optical gas sensor;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Photoluminescence spectra of different concentration of laser grade dye stilbene dye solution and stilbene incorporated in mesoporous silica nanoparticle (MSN) had been studied and compared to determine maximum quantum yield. High quantum yield was obtained for 10−3 M concentration stilbene incorporated MSN. This stilbene incorporated MSN silica is shown to give a fluorescence response to gaseous sulphur dioxide, with a response time of a few seconds and fluorescence emission intensity is proportional to the sulphur dioxide concentration, which are desirable properties for gas sensing. These features together make this MSN material very promising for optical sensing applications.
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页码：45 / 52
页数：7
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