Title | Time evolution of photoluminescence response from porous silicon in hydrocarbon gas sensing |
Publication Type | Journal Article |
Year of Publication | 2000 |
Authors | Dian J, Holec T, Jelinek I, Jindrich J, Valenta J, Pelant I |
Journal | Physica Status Solidi A-Applied Research |
Volume | 182 |
Issue | 1 |
Pagination | 485 - 488 |
Date Published | 2000/10// |
ISBN Number | 0031-8965 |
Abstract | A 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 Title | Phys. Status Solidi A |