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Relative humidity and alcohol sensors based on mesoporous silica thin films synthesised from block copolymers

Bearzotti, Andrea and Mio Bertolo, Johnny and Innocenzi, Plinio and Falcaro, Paolo and Traversa, Enrico (2003) Relative humidity and alcohol sensors based on mesoporous silica thin films synthesised from block copolymers. Sensors and Actuators. B: Chemical, Vol. 95 (1-3), p. 107-110. ISSN 0925-4005. Article.

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DOI: 10.1016/S0925-4005(03)00416-7

Abstract

The response of a new type of based humidity and alcohol vapours sensor has been investigated by means of chemical characterisation and electric measurements. The silica thin film mesoporous sensors were manufactured by dip-coating on substrates with interdigitated electrodes. Large current intensity variation (more than four magnitude orders) as a function of the relative humidity or alcohol presence in the environment has been observed with a more sensitive region for low concentrations. The performance of the sensors has been found to be dependent on the film preparation parameters.

Item Type:Article
ID Code:1298
Status:Published
Refereed:Yes
Uncontrolled Keywords:Mesoporous, sol–gel, humidity sensors, alcohol sensors, self-assembling
Subjects:Area 09 - Ingegneria industriale e dell'informazione > ING-IND/22 Scienza e tecnologia dei materiali
Divisions:002 Altri enti e centri di ricerca del Nord Sardegna > INSTM-Consorzio Interuniversitario Nazionale per la Scienza e la Tecnologia dei Materiali, Unità di ricerca di Sassari
001 Università di Sassari > 01 Dipartimenti > Architettura e pianificazione
Publisher:Elsevier
ISSN:0925-4005
Deposited On:18 Aug 2009 10:04

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