Design, Synthesis, and Properties of Asymmetrical Heteroacene and Its Application in Organic Electronics

被引：15

作者：

Du, Chunyan ^{[1
,2
]}

Guo, Yunlong ^{[1
,2
]}

Chen, Jianming ^{[1
,2
]}

Liu, Hongtao ^{[1
,2
]}

Liu, Ying ^{[1
,2
]}

Ye, Shanghui ^{[1
,2
]}

Lu, Kun ^{[1
,2
]}

Zheng, Jian ^{[1
,2
]}

Wu, Ti ^{[1
,2
]}

Liu, Yunqi ^{[1
]}

Shuai, Zhigang ^{[1
]}

Yu, Gui ^{[1
]}

机构：

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

[2] Chinese Acad Sci, Grad Sch, Beijing 100190, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2010年 / 114卷 / 23期

关键词：

THIN-FILM TRANSISTORS; FIELD-EFFECT TRANSISTORS; HIGH-MOBILITY; HOLE MOBILITIES; LINEAR ACENES; PERFORMANCE; MORPHOLOGY; OLIGOTHIOPHENES; SEMICONDUCTORS; HEXACENE;

D O I：

10.1021/jp101135e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Asymmetrical heteroacene up to six fused rings, tetraceno[2,3-b]benzo[d]thiophene (TBT), was synthesized facilely and its physicochemical properties and device applications were investigated. Field-effect transistors (FETs) fabricated with TBT as semiconducting layers showed carrier mobility up to 0.13 cm(2) V-1 s(-1). The transistors also exhibited a photoeffect and a ratio of photocurrent to dark-current as high as 10(4) was achieved. Density functional theory and FET results demonstrated that, for bent heteroacenes, increasing a benzene ring in conjugation length would not result in higher field-effect mobility, and the FET performance is more influenced by the thin film morphology. All these results suggest that the introduction of heteroatoms provides an efficient route for exploring the chemistry of larger acenes.

引用

页码：10565 / 10571

页数：7

共 55 条

[1] Studies of tetracene- and pentacene-based organic thin-film transistors fabricated by the neutral cluster beam deposition method [J].