Effects of the Ionic Currents in Electrolyte-gated Organic Field-Effect Transistors

被引：57

作者：

Said, Elias ^{[1
]}

Larsson, Oscar ^{[1
]}

Berggren, Magnits ^{[1
]}

Crispin, Xavier ^{[1
]}

机构：

[1] Linkoping Univ, Dept Sci & Technol ITN, SE-60174 Norrkoping, Sweden

来源：

ADVANCED FUNCTIONAL MATERIALS | 2008年 / 18卷 / 21期

基金：

瑞典研究理事会;

关键词：

D O I：

10.1002/adfm.200701251

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Polyelectrolytes are promising materials as gate dielectrics in organic field-effect transistors (OFETs). Upon gate bias, their polarization induces an ionic charging current, which generates a large double layer capacitor (10-500 mu F cm(-2))at the semiconductor/electrolyte interface. The resulting transistor operates at low voltages (<1 V) and its conducting channel is formed in similar to 50 mu s. The effect of ionic currents on the performance of the OFETs is investigated by varying the relative humidity of the device ambience. Within defined humidity levels and potential values, the water electrolysis is negligible and the OFETs performances are optimum.

引用

页码：3529 / 3536

页数：8

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