Investigations by impedance spectroscopy on the behaviour of poly(N,N-dimethylpropargylamine) as humidity sensor

被引：51

作者：

Quartarone, E

Mustarelli, P

Magistris, A

Russo, MV

Fratoddi, I

Furlani, A

机构：

[1] Univ Pavia, Dept Chem Phys, I-27100 Pavia, Italy

[2] Univ Pavia, CNR, CSTE, I-27100 Pavia, Italy

[3] Univ Rome La Sapienza, Dept Chem, I-00185 Rome, Italy

来源：

SOLID STATE IONICS | 2000年 / 136卷

关键词：

polymer; thin film; humidity sensor; pi-conjugated polymers; impedance spectroscopy;

D O I：

10.1016/S0167-2738(00)00334-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

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.

引用

页码：667 / 670

页数：4

共 18 条

[1] Electrical and morphological characterisation of new π-conjugated polymer films as gas sensors [J].