ELECTROPOLYMERIZATION OF ELECTROINACTIVE POLYPYRROLE FILM FOR A NONLINEAR MIM SWITCHING DEVICE

被引：10

作者：

OSAKA, T ^{[1
]}

FUKUDA, T ^{[1
]}

OUCHI, K ^{[1
]}

NAKAJIMA, T ^{[1
]}

机构：

[1] SEIKO EPSON CO,NAGANO 391,JAPAN

来源：

DENKI KAGAKU | 1991年 / 59卷 / 12期

关键词：

ELECTROINACTIVE POLYPYRROLE; HIGHLY ANODIC ELECTROLYSIS; NUCLEOPHILIC HYDROXIDE ION; NONLINEAR MIM DEVICE;

D O I：

10.5796/kogyobutsurikagaku.59.1019

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Thin films of electroinactive polypyrrole (PPy) were electropolymerized in NaOH aqueous solutions on ITO (indium tin oxide) electrodes for the purpose of constructing nonlinear MIM (metal-insulator-metal) switching devices for large scale flat panel displays. Electroactivity and morphology of PPy films were greatly affected by the NaOH concentration. Highly anodic potential (1.5 V vs. Ag/AgCl) electrolysis in NaOH solution produced carbonyl groups in the PPy chain, so that electroinactive PPy was nonconducting in as-prepared conditions. The MIM structure of ITO/PPy/ITO was fabricated by ITO sputtering onto the PPy film. The device using the PPy film prepared from 0.01 mol dm-3 NaOH aqueous solution showed nonlinear and symmetric current-voltage (I-V) characteristics. In spite of using the nonconductive PPy, a dependence of I-V characteristics on polymerization time was observed, and a proper polymerization time was required to produce an MIM device.

引用

页码：1019 / 1025

页数：7

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