Precursor synthesis, coupling, and TFT evaluation of end-substituted thiophene hexamers

被引：92

作者：

Katz, HE

Dodabalapur, A

Torsi, L

Elder, D

机构：

[1] AT&T Bell Laboratories, Murray Hill, New Jersey 07974

来源：

CHEMISTRY OF MATERIALS | 1995年 / 7卷 / 12期

关键词：

D O I：

10.1021/cm00060a008

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：

Methods for synthesizing pure, monosubstituted alpha-terthiophenes, and selectively coupling their lithiated derivatives to produce disubstituted sexithiophenes were developed. The terthiophenes were made via carbonyl intermediates that could be readily chromatographed. The coupling reagents were selected to minimize chlorination and lithium-hydrogen exchange. The mobility of the dihexylated hexamer in thin-film transitors was 0.03 cm(2)/Vs, in agreement with the literature. The on/off ratio was much higher than the literature, due to improved purity. Use of hexylthio as a substituent gave highly conductive, poorly performing transistors.

引用

收藏

页码：2238 / 2240

页数：3

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