Effects of molecular alignment on carrier transport in organic transistors

被引：25

作者：

Nagamatsu, S

Tanigaki, N

Yoshida, Y

Takashima, W

Yase, K

Kaneto, K

机构：

[1] Kyushu Inst Technol, Grad Sch Life Sci & Syst Engn, Iizuka, Fukuoka 8208502, Japan

[2] Natl Inst Adv Ind Sci & Technol AIST, Tsukuba, Ibaraki 3058565, Japan

来源：

SYNTHETIC METALS | 2003年 / 137卷 / 1-3期

关键词：

polythiophene and derivatives; X-ray diffraction; metal-oxide-semiconductor structures; transport measurements;

D O I：

10.1016/S0379-6779(02)01184-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The application of molecular alignment to conjugated polymers offers a unique approach for constructing organic semiconductor devices. We made polymer thin film field-effect transistors (FET) by friction-transfer technique, based on regioregular poly(3-alkylthiophene) (P3AT). Friction-transferred films of BAT were found to align approximately all of the polymer main-chains within a 9-13degrees range along the friction direction. When introduced in FET devices, the mobility anisotropies of 5-20 for current flow parallel and orthogonal to the friction direction has been observed. In addition, when compared with conventional isotropic FET devices of non-aligned P3AT films, they were found to enhance the mobility by a factor of 2-70.

引用

页码：923 / 924

页数：2

共 6 条

[1] REGIOCONTROLLED SYNTHESIS OF POLY(3-ALKYLTHIOPHENES) MEDIATED BY RIEKE ZINC - THEIR CHARACTERIZATION AND SOLID-STATE PROPERTIES [J].