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Brookite titanium dioxide (TiO2) nanorods, synthesized by a surfactant-assisted aminolysis route, were used as precursors for the fabrication of thin films by using the matrix-assisted pulsed-laser deposition (MAPLE) technique. Thin films with controllable thickness were grown on a variety of substrates for different characterizations. High-resolution scanning and transmission electron microscopy investigations evidenced the formation of rough TiO2 films incorporating individually distinguishable nanocrystals with different shapes. Suitable alumina substrates equipped with interdigitated electrical contacts (IDC) and heating elements were used to fabricate gas-sensing devices based on resistive transduction mechanism. Electrical characterization measurements in controlled environment were carried out. Typical gas sensor parameters (such as gas response, sensitivity, stability and detection limit) towards selected …
Publication date: 
3 Jan 2012

MG Manera, A Taurino, M Catalano, Roberto Rella, Anna Paola Caricato, R Buonsanti, Pantaleo Davide Cozzoli, Maurizio Martino

Biblio References: 
Volume: 161 Issue: 1 Pages: 869-879
Sensors and Actuators B: Chemical