Organic thin film transistors using 6,13-bis(tri-isopropylsilylethynyl)pentacene embedded into polymer binders

被引：47

作者：

Kwon, Jae-Hong ^{[2
]}

Shin, Sang-Il ^{[2
]}

Kim, Kyung-Hwan ^{[3
]}

Cho, Min Ju ^{[3
]}

Kim, Kyu Nam ^{[3
]}

Choi, Dong Hoon ^{[3
]}

Ju, Byeong-Kwon ^{[1
]}

机构：

[1] Korea Univ, Sch Elect Engn, Coll Engn, Seoul 136701, South Korea

[2] Korea Univ, Coll Engn, Display & Nanosyst Lab, Seoul 136701, South Korea

[3] Korea Univ, Dept Chem, Seoul 136701, South Korea

来源：

APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 01期

关键词：

carrier mobility; charge exchange; dielectric thin films; organic semiconductors; solubility; thin film transistors; HIGH-MOBILITY;

D O I：

10.1063/1.3063123

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The active channel material of an organic thin film transistor (OTFT), 6,13-bis(tri-isopropylsilylethynyl)pentacene (TIPS pentacene), is a functionalized pentacene designed to enhance both the solubility and solid-state packing of the pentacene. In this work, in order to improve device performance, three types of polymer binders-poly(alpha-methylstyrene) (PAMS), poly(4-vinylbiphenyl) (PVBP), and poly(triarylamine) (PTAA)-were employed to fabricate OTFT devices with organic soluble TIPS pentacene. These binders improved film formation in a large area uniformly and helped the TIPS pentacene to form a stronger binding between source/drain electrodes onto dielectric layer. Thus, device performance was highly improved due to improvement of interfacial contact and an increase in the charge transfer in the active channel. OTFTs using TIPS pentacene with PAMS, PVBP, and PTAA for field effect mobilities in the saturation regime have 5x10(-3), 8x10(-3), and 2.7x10(-2) cm(2)/V s, respectively.

引用

页数：3

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