Open AccessFiber Optical Micro-detectors for Oxygen Sensing in Power Plants
Author(s) -
Gregory L. Baker,
Ruby N. Ghosh,
D J Osborn
Publication year - 2003
Language(s) - English
Resource type - Reports
DOI - 10.2172/899500
Subject(s) - luminescence , materials science , oxygen sensor , oxygen , quenching (fluorescence) , optical fiber , spectroscopy , analytical chemistry (journal) , optoelectronics , optics , chemistry , fluorescence , physics , organic chemistry , chromatography , quantum mechanics
Spectroscopy of Mo{sub 6}Cl{sub 12} immobilized in a sol-gel matrix and heated to 200 C has been performed. Oxygen quenching of the luminescence was observed. Aging Mo{sub 6}Cl{sub 12} to temperatures above 250 C converts the canary yellow Mo{sub 6}Cl{sub 12} to a non-luminescent gray solid. Preliminary experiments point to oxidation of the clusters as the likely cause of thermally induced changes in the physical and optical properties of the clusters