A thin film of poly(N,N-dimethylpropargylamine) (PDMPA), deposited by spin coating over a SiO2 substrate covered by an interdigitated array of chromium electrodes, was characterised by impedance spectroscopy at different relative humidity levels, ranging from similar to0 to similar to 90% relative humidity (RH). The logarithm of the film conductance exhibits a linear behaviour from very low RH contents up to more than 70% RH. The dynamic range of the variation of the conductance is extremely high (similar to6 orders-of-magnitude) and it allows a promising use of the film as a humidity sensor. (C) 2000 Elsevier Science B.V. All rights reserved.
Investigations by impedance spectroscopy on the behaviour of poly(N,N-dimethylpropargylamine) as humidity sensor / E., Quartarone; P., Mustarelli; A., Magistris; Russo, Maria Vittoria; Fratoddi, Ilaria; A., Furlani. - In: SOLID STATE IONICS. - ISSN 0167-2738. - STAMPA. - 136:1-2(2000), pp. 667-670. (Intervento presentato al convegno 12th International Conference on Solid State Ionics tenutosi a HALKIDIKI, GREECE nel JUN 06-12, 1999) [10.1016/s0167-2738(00)00334-9].
Investigations by impedance spectroscopy on the behaviour of poly(N,N-dimethylpropargylamine) as humidity sensor
RUSSO, Maria Vittoria;FRATODDI, Ilaria;
2000
Abstract
A thin film of poly(N,N-dimethylpropargylamine) (PDMPA), deposited by spin coating over a SiO2 substrate covered by an interdigitated array of chromium electrodes, was characterised by impedance spectroscopy at different relative humidity levels, ranging from similar to0 to similar to 90% relative humidity (RH). The logarithm of the film conductance exhibits a linear behaviour from very low RH contents up to more than 70% RH. The dynamic range of the variation of the conductance is extremely high (similar to6 orders-of-magnitude) and it allows a promising use of the film as a humidity sensor. (C) 2000 Elsevier Science B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
