Time evolution of photoluminescence response from porous silicon in hydrocarbon gas sensing

TitleTime evolution of photoluminescence response from porous silicon in hydrocarbon gas sensing
Publication TypeJournal Article
Year of Publication2000
AuthorsDian J, Holec T, Jelinek I, Jindrich J, Valenta J, Pelant I
JournalPhysica Status Solidi A-Applied Research
Volume182
Issue1
Pagination485 - 488
Date Published2000/10//
ISBN Number0031-8965
AbstractA photoluminescence (PL) response (S-band) of porous silicon to specific amounts of organic vapors of n-hexane, toluene and methanol in gas phase reveals the presence of two reversible processes: one relatively fast responsible for. PL quenching and one relatively slow which is responsible for a remarkable PL enhancement. The last PL quenching (with time constant of several seconds) can be utilized for sensing the studied organic vapors within a concentration range of about 1-500 ppm.
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Short TitlePhys. Status Solidi A
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