期刊
JOURNAL OF POROUS MATERIALS
卷 21, 期 1, 页码 45-52出版社
SPRINGER
DOI: 10.1007/s10934-013-9745-8
关键词
Mesoporous nano silica; Fluorescence sensitization; Optical gas sensor
资金
- DRDO project [CFEES/ATEG/CARS/001/09-10]
- CFEES, DRDO
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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