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

0379191 - FZÚ 2013 RIV JP eng J - Journal Article
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
R&D Projects: GA ČR(CZ) GAP108/11/1298
Institutional research plan: CEZ:AV0Z10100522
Keywords : gas sensing * tin acetylacetonate * pulsed laser deposition (PLD) method * selectivity tunable by temperature
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 0.288, year: 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.
Permanent Link: http://hdl.handle.net/11104/0210452