Enhanced Performance of Benzothieno[3,2-b]thiophene (BTT)-Based Bottom-Contact Thin-Film Transistors

被引：42

作者：

Huang, Peng-Yi ^{[1
]}

Chen, Liang-Hsiang ^{[2
]}

Chen, Yu-Yuan ^{[1
]}

Chang, Wen-Jung ^{[1
]}

Wang, Juin-Jie ^{[1
]}

Lii, Kwang-Hwa ^{[1
]}

Yan, Jing-Yi ^{[2
]}

Ho, Jia-Chong ^{[2
]}

Lee, Cheng-Chung ^{[2
]}

Kim, Choongik ^{[3
]}

Chen, Ming-Chou ^{[1
]}

机构：

[1] Natl Cent Univ, Dept Chem, Chung Li, South Korea

[2] Ind Technol Res Inst, Proc Technol Div, Display Technol Ctr, Hsinchu, Taiwan

[3] Sogang Univ, Dept Chem & Biomol Engn, Seoul 121742, South Korea

来源：

CHEMISTRY-A EUROPEAN JOURNAL | 2013年 / 19卷 / 11期

基金：

新加坡国家研究基金会;

关键词：

conjugation; semiconductors; thin films; thiophenes; transistors; FIELD-EFFECT TRANSISTORS; ORGANIC SEMICONDUCTOR; SUBSTITUTED PENTACENE; STABILITY; DERIVATIVES; POLYMER;

D O I：

10.1002/chem.201204110

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Three new benzothieno[3,2-b]thiophene (BTT; 1) derivatives, which were end-functionalized with phenyl (BTT-P; 2), benzothiophenyl (BTT-BT; 3), and benzothieno[3,2-b]thiophenyl groups (BBTT; 4; dimer of 1), were synthesized and characterized in organic thin-film transistors (OTFTs). A new and improved synthetic method for BTTs was developed, which enabled the efficient realization of new BTT-based semiconductors. The crystal structure of BBTT was determined by single-crystal X-ray diffraction. Within this family, BBTT, which had the largest conjugation of the BTT derivatives in this study, exhibited the highest p-channel characteristic, with a carrier mobility as high as 0.22cm2V1s1 and a current on/off ratio of 1x107, as well as good ambient stability for bottom-contact/bottom-gate OTFT devices. The device characteristics were correlated with the film morphologies and microstructures of the corresponding compounds.

引用

页码：3721 / 3728

页数：8

共 61 条

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