The development of nanostructured materials opened new frontiers in the realization of sensors employed in many fields and applications. Thin and thick films of sensitive materials are widely employed in the productions of resistive or capacitive sensors. In this work, it is reported about the electrical characterization versus temperature of MWCNTS/PDDAC based sensitive film and about the development of a low cost measurement setup for the temperature characterization of the sheet resistance of sensitive films. The system is an useful aid to understand the behaviour of sensing materials working at low operating temperatures up to 100 °C and for the development and characterization of sensors working at room temperature, without any needing of integrated heaters. Here are reported experimental results regarding humidity sensing films fabricated by rubber stamp printing on a glossy paper substrate of an ink based on multiwalled carbon nanotubes (MWCNTs) and dispersed in a solution of PDDAC (poly(diallyldimethylammonium chloride)).
TEMPERATURE CHARACTERIZATION OF THE SHEET RESISTANCE OF MWCNTS/PDDAC BASED SENSITIVE FILMS
DONATO, Nicola;SPADARO, DONATELLA;LATINO, MARIANGELA;
2012-01-01
Abstract
The development of nanostructured materials opened new frontiers in the realization of sensors employed in many fields and applications. Thin and thick films of sensitive materials are widely employed in the productions of resistive or capacitive sensors. In this work, it is reported about the electrical characterization versus temperature of MWCNTS/PDDAC based sensitive film and about the development of a low cost measurement setup for the temperature characterization of the sheet resistance of sensitive films. The system is an useful aid to understand the behaviour of sensing materials working at low operating temperatures up to 100 °C and for the development and characterization of sensors working at room temperature, without any needing of integrated heaters. Here are reported experimental results regarding humidity sensing films fabricated by rubber stamp printing on a glossy paper substrate of an ink based on multiwalled carbon nanotubes (MWCNTs) and dispersed in a solution of PDDAC (poly(diallyldimethylammonium chloride)).Pubblicazioni consigliate
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