Langmuir-Blodgett multilayers based on copper phthalocyanine as gas sensor materials: Active layer gas interaction model and conductivity modulation

被引：86

作者：

Rella, R ^{[1
]}

Serra, A ^{[1
]}

Siciliano, P ^{[1
]}

Tepore, A ^{[1
]}

Valli, L ^{[1
]}

Zocco, A ^{[1
]}

机构：

[1] UNIV LECCE,DIPARTIMENTO SCI MAT,I-73100 LECCE,ITALY

来源：

LANGMUIR | 1997年 / 13卷 / 24期

关键词：

D O I：

10.1021/la961029c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Blodgett films of copper(II) [tetrakis((3,3-dimethylbutoxy)carbonyl)]phthalocyanine and copper(II)[tetrakis(n-butoxycarbonyl)]phthalocyanine have been studied as sensitive elements of gas sensors. Moreover, alternate LB films of the two compounds and LB films obtained from a 1:1 mixture of them have also been investigated. In particular, after exposure to NO2 oxidizing gas, the electrical conductivity of the materials goes through a maximum at a temperature of about 170 degrees C corresponding to the maximum sensitivity to the gas. The sensitivity and stability of the response of the active layers to NO2 are discussed as well as the application of these materials as the sensitive elements for gas-sensing devices.

引用

页码：6562 / 6567

页数：6

共 18 条

[1] THE PREPARATION AND PROPERTIES OF STABLE METAL-FREE PHTHALOCYANINE LANGMUIR-BLODGETT FILMS [J].