High-Performance Phototransistors Based on Organic Microribbons Prepared by a Solution Self-Assembly Process

被引：129

作者：

Guo, Yunlong ^{[1
,2
]}

Du, Chunyan ^{[1
,2
]}

Yu, Gui ^{[1
]}

Di, Chong-an ^{[1
]}

Jiang, Shidong ^{[1
]}

Xi, Hongxia ^{[1
,2
]}

Zheng, Jian ^{[1
,2
]}

Yan, Shouke ^{[1
]}

Yu, Cailan ^{[1
]}

Hu, Wenping ^{[1
]}

Liu, Yunqi ^{[1
]}

机构：

[1] Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Beijing 100190, Peoples R China

[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China

来源：

ADVANCED FUNCTIONAL MATERIALS | 2010年 / 20卷 / 06期

基金：

中国国家自然科学基金;

关键词：

FIELD-EFFECT TRANSISTORS; THIN-FILM TRANSISTORS; SINGLE-CRYSTAL TRANSISTORS; HIGH-MOBILITY; SEMICONDUCTOR; PENTACENE; ACENES;

D O I：

10.1002/adfm.200901662

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Oligoarenes as an alternative group of promising semiconductors in organic optoelectronics have attracted much attention. However, high-performance and low-cost opto-electrical devices based on linear asymmetric oligoarenes with nano/microstructures are still rarely studied because of difficulties both in synthesis and high-quality nano/microstructure growth. Here, a novel, linear asymmetric oligoarene 6-methyl-anthra[2,3-b]benzo[d]thiophene (Me-ABT) is synthesized and its high-quality microribbons are grown by a solution process. The solution of Me-ABT exhibits a moderate fluorescence quantum yield of 0.34, while the microribbons show a glaucous light emission. Phototransistors based on an individual Me-ABT microribbon prepared by a solution-phase self-assembly process showed a high mobility of 1.66 cm(2)V(-1) a large photoresponsivity of 12 000 A W-1, and a photocurrent/dark-current ratio of 6000 even under low light power conditions (30 mu W/cm(2)) The measured photoresponsivity of the devices is much higher than that of inorganic single-crystal silicon thin film transistors. These studies shod boost the development of the organic semiconductors with high-quality microstructures for potential application in organic optoelectronics.

引用

页码：1019 / 1024

页数：6

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