A composite sol-gel/fluoropolymer matrix for dissolved oxygen optical sensing

被引：24

作者：

Gillanders, RN

Tedford, MC

Crilly, PJ

Bailey, RT

机构：

[1] Bell Coll Technol, Hamilton, ON ML3 0JB, Canada

[2] Univ Strathclyde, Glasgow G1 1XL, Lanark, Scotland

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2004年 / 163卷 / 1-2期

关键词：

composite; sol-gel; erythrosin B; dissolved oxygen; sensor; fluoropolymer; phosphorescence; static quenching;

D O I：

10.1016/j.jphotochem.2003.11.003

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A thin film dissolved oxygen optical sensor was fabricated by encapsulating the phosphorescent dye erythrosin B in a sol-gel/fluoropolymer composite matrix. Strong phosphorescence, which was efficiently quenched by dissolved oxygen, was observed. The sensor was stable, optically transparent, resistant to contamination, with good mechanical properties. Fast response, coupled with good sensitivity and resistance to leaching, were also exhibited by this system. The Stern-Volmer (SV) plot was linear at low dissolved oxygen concentrations, but exhibited marked upward turning at higher concentrations due to combined dynamic and static quenching processes. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：193 / 199

页数：7

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