OPTICAL HUMIDITY SENSING CHARACTERISTICS OF NAFION-DYES COMPOSITE THIN-FILMS

被引：40

作者：

SADAOKA, Y

MATSUGUCHI, M

SAKAI, Y

MURATA, YU

机构：

[1] Department of Applied Chemistry, Faculty of Engineering, Ehime University, Matsuyama

来源：

SENSORS AND ACTUATORS B-CHEMICAL | 1992年 / 7卷 / 1-3期

关键词：

D O I：

10.1016/0925-4005(92)80340-4

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

By using composite films of hydrolyzed Nafion and dyes having a terminal N-phenyl group, an optical humidity sensor has been fabricated. In the reflection mode, the optical intensity of the absorption peaks which depend on the dyes used was influenced by relative humidity. In dry air, the alkyl amine group reacted with SO3H of hydrolyzed Nafion and formed a proton additive. Sorption of water molecules induces the deprotonation of the quaternized ammonium group.

引用

页码：443 / 446

页数：4

共 7 条

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