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Thiophene-Diketopyrrolopyrrole-Based Quinoidal Small Molecules as Solution-Processable and Air-Stable Organic Semiconductors: Tuning of the Length and Branching Position of the Alkyl Side Chain toward a High-Performance n-Channel Organic Field-Effect Transistor

文献类型：期刊论文

作者Wang, Chao1,2; Qin, Yunke1,2; Sun, Yuanhui1,2; Guan, Ying-Shi1,2; Xu, Wei1; Zhu, Daoben1
刊名ACS APPLIED MATERIALS & INTERFACES
出版日期2015-07-29
卷号7期号:29页码:15978-15987
关键词quinoidal molecules diketopyrrolopyrrole n-type organic semiconductors spin-coated OFET's alkyl-side-chain engineering
英文摘要A series of thiophene-diketopyrrolopyrrole-based quinoidal small molecules (TDPPQ-2TDPPQ-5) bearing branched alkyl chains with different side-chain lengths and varied branching positions are synthesized. Field-effect transistor (FET) measurement combined with thin-film characterization is utilized to systematically probe the influence of the side-chain length and branching position on the film microstructure, molecular packing, and, hence, charge-transport property. All of these TDPPQ derivatives show air-stable n-channel transporting behavior in spin-coated FET devices, which exhibit no significant decrease in mobility even after being stored in air for 2 months. Most notably, TDPPQ-3 exhibits an outstanding n-channel semiconducting property with electron mobilities up to 0.72 cm(2) V-1 s(-1), which is an unprecedented value for spin-coated DPP-based n-type semiconducting small molecules. A balance of high crystallinity, satisfactory thickness uniformity and continuity, and strong intermolecular interaction accounts for the superior charge-transport characteristics of TDPPQ-3 films. Our study demonstrates that tuning the length and branching position of alkyl side chains of semiconducting molecules is a powerful strategy for achieving high FET performance.
收录类别SCI
语种英语
公开日期2016-05-09
源URL[http://ir.iccas.ac.cn/handle/121111/27788]  
专题化学研究所_有机固体实验室
作者单位1.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式
GB/T 7714		 Wang, Chao,Qin, Yunke,Sun, Yuanhui,et al. Thiophene-Diketopyrrolopyrrole-Based Quinoidal Small Molecules as Solution-Processable and Air-Stable Organic Semiconductors: Tuning of the Length and Branching Position of the Alkyl Side Chain toward a High-Performance n-Channel Organic Field-Effect Transistor[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(29):15978-15987.
APA Wang, Chao,Qin, Yunke,Sun, Yuanhui,Guan, Ying-Shi,Xu, Wei,&Zhu, Daoben.(2015).Thiophene-Diketopyrrolopyrrole-Based Quinoidal Small Molecules as Solution-Processable and Air-Stable Organic Semiconductors: Tuning of the Length and Branching Position of the Alkyl Side Chain toward a High-Performance n-Channel Organic Field-Effect Transistor.ACS APPLIED MATERIALS & INTERFACES,7(29),15978-15987.
MLA Wang, Chao,et al."Thiophene-Diketopyrrolopyrrole-Based Quinoidal Small Molecules as Solution-Processable and Air-Stable Organic Semiconductors: Tuning of the Length and Branching Position of the Alkyl Side Chain toward a High-Performance n-Channel Organic Field-Effect Transistor".ACS APPLIED MATERIALS & INTERFACES 7.29(2015):15978-15987.

入库方式： OAI收割

来源：化学研究所

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