Enhanced Charge Transport in Polymer Thin-Film Transistors Prepared by Contact Film Transfer Method

被引：67

作者：

Wei, Qingshuo ^{[1
]}

Miyanishi, Shoji ^{[1
]}

Tajima, Keisuke ^{[1
]}

Hashimoto, Kazuhito ^{[1
,2
]}

机构：

[1] Univ Tokyo, Dept Appl Chem, Sch Engn, Bunkyo Ku, Tokyo 1138656, Japan

[2] Japan Sci & Technol Agcy, HASHIMOTO Light Energy Convers Project, Bunkyo Ku, Tokyo 1138656, Japan

来源：

ACS APPLIED MATERIALS & INTERFACES | 2009年 / 1卷 / 11期

关键词：

Organic field-effect transistor; film transfer; conjugated polymer; interfacial property; FIELD-EFFECT MOBILITY; REGIOREGULAR POLYTHIOPHENE; PI-INTERACTION; CHAIN-LENGTH; POLY(3-HEXYLTHIOPHENE); PERFORMANCE; INTERFACES; SURFACE;

D O I：

10.1021/am9005572

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The charge-carrier transport in the structures formed at the surface of various conjugated polymer films is investigated by constructing oragnic thin film transistors using a novel and simple contact film transfer method. Thin-film transistors prepared by this transfer process have higher field-effect mobility values compared with conventional spin-coated devices, for all the studied polmers. In contrast to previous reports the hole mobility in regioregular poly(3-alkylthiophene)s does not depend on the length of the alkyl chain when the contact film transfer method is used. These results suggest that the thin thiophene rings adopt a highly ordered edge on orientation and strong interchain pi-pi interactions spontaneously, form at the polymer/air interface during the spin-coating

引用

页码：2660 / 2666

页数：7

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