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

Autor:	Raymond T. Bailey, M. C. Tedford, Ross N. Gillanders, P.J. Crilly
Rok vydání:	2004
Předmět:	Quenching General Chemical Engineering Composite number Analytical chemistry General Physics and Astronomy General Chemistry Contamination chemistry.chemical_compound chemistry Fluoropolymer Leaching (metallurgy) Thin film Phosphorescence Sol-gel
Zdroj:	Journal of Photochemistry and Photobiology A: Chemistry. 163:193-199
ISSN:	1010-6030
DOI:	10.1016/j.jphotochem.2003.11.003
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::418f8463936529fb60de8c54a9c6356e https://doi.org/10.1016/j.jphotochem.2003.11.003 Zobrazit plný text záznamu Full Text from ScienceDirect