A-D-A small molecules featuring multi-fused rings and fluorinated benzothiadiazole for solution-processed organic field-effect transistors

IF 4 3区 材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY
Yu Hua , Hoimin Kim , Li Wang , Young Yong Kim , Boseok Kang , Guobing Zhang
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引用次数: 0

Abstract

Three small molecules with acceptor-donor-acceptor structure, featuring multi-fused rings (pentacyclic, heptacyclic, and octacyclic arenes) as donors and fluorinated benzothiadiazole as acceptor were synthesized and characterized for their applications in solution-processed organic field-effect transistors. The impact of different fused-ring structures of donor units on the optical and electrochemical properties, crystal structure, and charge carrier of the small molecule were systematically studied. The small molecule containing heptacyclic ladder-type arene demonstrated the highest field-effect performances, achieving a hole mobility of 0.29 cm2V–1s–1. Additionally, devices processed with non-chlorinated solvents also showed excellent mobility, approximately 0.20 cm2V–1s–1.
A-D-A小分子具有多熔合环和氟化苯并噻二唑溶液加工的有机场效应晶体管
合成了以多熔合环(五环、七环和八环芳烃)为给体,氟化苯并噻唑为受体的三种具有受体-给体-受体结构的小分子,并对其在溶液处理有机场效应晶体管中的应用进行了表征。系统研究了不同给体单元的熔合环结构对小分子光学和电化学性能、晶体结构和载流子的影响。含七环阶梯型芳烃的小分子表现出最高的场效应性能,空穴迁移率达到0.29 cm2V-1s-1。此外,用非氯化溶剂处理的器件也表现出优异的迁移率,约为0.20 cm2V-1s-1。
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来源期刊
Synthetic Metals
Synthetic Metals 工程技术-材料科学:综合
CiteScore
8.30
自引率
4.50%
发文量
189
审稿时长
33 days
期刊介绍: This journal is an international medium for the rapid publication of original research papers, short communications and subject reviews dealing with research on and applications of electronic polymers and electronic molecular materials including novel carbon architectures. These functional materials have the properties of metals, semiconductors or magnets and are distinguishable from elemental and alloy/binary metals, semiconductors and magnets.
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