Quinacridone organic field effect transistors with significant stability by vacuum sublimation

被引：24

作者：

Berg, Dominik ^{[1
]}

Nielinger, Christine ^{[2
]}

Mader, Werner ^{[2
]}

Sokolowski, Moritz ^{[1
]}

机构：

[1] Univ Bonn, Inst Phys & Theoret Chem, D-53115 Bonn, Germany

[2] Univ Bonn, Inst Anorgan Chem, D-53117 Bonn, Germany

来源：

SYNTHETIC METALS | 2009年 / 159卷 / 23-24期

关键词：

Quinacridone; Organic field effect transistors; Pentacene; PIGMENTS; MOBILITY; VOLTAGE; ALKYL;

D O I：

10.1016/j.synthmet.2009.09.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Quinacridone (QA), a highly stable red dye, was investigated for the fabrication of organic field effect transistors (OFETs) by vacuum sublimation. Field effect mobilities for holes of 10(-6) to 10(-3) cm(2)/Vs were found, depending on the purity of the QA and the substrate temperature during the sublimation. The latter influences the structural phase composition of the films. The temperature dependence of the mobilities exhibits a maximum (mu = (1.5 +/- 0.2) x 10(-3) cm(2)/Vs) at similar to 270 K. Over a period of 50 days, the mobilities are stable and even slightly increase, although the OFETs were exposed to air between measurements. (C) 2009 Published by Elsevier B.V.

引用

页码：2599 / 2602

页数：4

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