Multi-parameter gas sensors based on organic thin-film-transistors

Authors
Torsi, L Dodabalapur, A Sabbatini, L Zambonin, PG
Citation
L. Torsi et al., Multi-parameter gas sensors based on organic thin-film-transistors, SENS ACTU-B, 67(3), 2000, pp. 312-316
Citations number
34
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
SENSORS AND ACTUATORS B-CHEMICAL
ISSN journal
09254005 → ACNP
Volume
67
Issue
3
Year of publication
2000
Pages
312 - 316
Database
ISI
SICI code
0925-4005(20000901)67:3<312:MGSBOO>2.0.ZU;2-5
Abstract
In this communication, evidence is provided that an organic thin-film-trans istor (OTFT) can be used as a novel gas sensor. When exposed to chemical sp ecies at room temperature, four parameters can be measured: the bulk conduc tivity of the organic thin film, the field-induced conductivity, the transi stor threshold voltage and the field effect mobility. Measurements of these parameters may allow for recognition of molecular species. (C) 2000 Elsevi er Science S.A. All rights reserved.