Sensing properties of tin acetylacetonate-based thin films doped with platinum

0379191 - FZÚ 2013 RIV JP eng J - Článek v odborném periodiku
Fitl, P. - Myslík, V. - Vrňata, M. - Náhlík, J. - Kopecký, D. - Vlček, J. - Hofmann, J. - Lančok, Ján
Sensing properties of tin acetylacetonate-based thin films doped with platinum.
Sensors and Materials. Roč. 24, č. 2 (2012), s. 75-86. ISSN 0914-4935. E-ISSN 0914-4935
Grant CEP: GA ČR(CZ) GAP108/11/1298
Výzkumný záměr: CEZ:AV0Z10100522
Klíčová slova: gas sensing * tin acetylacetonate * pulsed laser deposition (PLD) method * selectivity tunable by temperature
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 0.288, rok: 2012
http://122.249.91.209/myukk/Journal/Download.php?fn=SM0870.pdf

Thin sensing films based on tin acetylacetonate (SnAcAc) with a latinum catalyst were prepared in situ by pulsed laser deposition (PLD) with a Nd:YAG laser. The morphology and roughness of both as-deposited and annealed layers were characterized. These layers were also deposited on alumina sensor substrates with interdigital Pt electrodes and then used for the detection of hydrogen, n-butanol, toluene, and water vapors in synthetic air. The temperature dependence of the response of the prepared sensors was measured in the range of 40-350 degrees C. It was proved that the selectivity to the above mentioned gases is easily tunable by adjusting the operating temperature of the sensor. The maximum response was achieved at 110 degrees C for hydrogen, 220 degrees C for n-butanol, 300 degrees C for toluene, and 340 degrees C for water vapor. The activation energy of surface reactions taking place during the detection process was also calculated.
Trvalý link: http://hdl.handle.net/11104/0210452