Optical properties and sensitivity of xerogel detection layers for fiber-optic hydrocarbon sensors

0304145 - URE-Y 20030106 AU eng A - Abstract
Matějec, Vlastimil - Mrázek, Jan - Skokánková, Jana - Chomát, Miroslav - Kašík, Ivan
Optical properties and sensitivity of xerogel detection layers for fiber-optic hydrocarbon sensors.
Sydney: ANSTO Australian Nuclear and Science Technology Organisation, 2003. SOLGEL 2003 Abstracts. s. 116
[Sol-Gel Science and Technology SOLGEL 2003 /12./. 24.08.2003-29.08.2003, Sydney]
R&D Projects: GA ČR GA102/02/0780
Institutional research plan: CEZ:AV0Z2067918
Keywords : sensors * optical fibres * sol-gel processing
Subject RIV: JA - Electronics ; Optoelectronics, Electrical Engineering

Polysiloxane xerogel layers doped with methyl and phenyl groups were prepared on substrates of silica fibers by the alkoxide sol-gel method and their sensitivity was tested by bringing the layers into contact with mixtures of gaseous toluene. The fibers were excited by an inclined collimated baem and output power was measured. The experiments have shown that layers prepared from methyltriethoxysilane-based sol exhibit a better sensitivity to toluene than laeyrs based on tetraethoxysilane.
Permanent Link: http://hdl.handle.net/11104/0114286