Significantly enhanced thermal stability from a new kind of n-type organic semiconductor DFA4: a fully fused F8IC

Tainan Duan; Yangjiang Wu; Ke Yang; Jiyeon Oh; Changduk Yang; Shanshan Chen; Cheng Zhong; Donghong Yu; Yan Zhao; Shirong Lu

doi:10.1039/D1TC03688B

Significantly enhanced thermal stability from a new kind of n-type organic semiconductor DFA4: a fully fused F8IC†

Tainan Duan,

‡*^a Yangjiang Wu,‡^b Ke Yang,*^a Jiyeon Oh,^c Changduk Yang,

^c Shanshan Chen,^d Cheng Zhong,^e Donghong Yu,

^fg Yan Zhao*^b and Shirong Lu

*^a

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* Corresponding authors

^a Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing, China
E-mail: tnduan@cigit.ac.cn, yangke@cigit.ac.cn, lushirong@cigit.ac.cn

^b Department of Materials Science, Fudan University, Shanghai 200438, China
E-mail: zhaoy@fudan.edu.cn

^c Department of Energy Engineering, School of Energy and Chemical Engineering, Perovtronics Research Center, Low Dimensional Carbon Materials Center, Ulsan National Institute of Science and Technology (UNIST), Ulsan 44919, Republic of Korea

^d Key Laboratory of Low-grade Energy Utilization Technologies and Systems, CQU-NUS Renewable Energy Materials & Devices Joint Laboratory, School of Energy & Power Engineering, Chongqing University, Chongqing 400044, P. R. China

^e Hubei Key Laboratory on Organic and Polymeric Opto-electronic Materials, College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China

^f Department of Chemistry and Bioscience, Aalborg University, Aalborg, DK 9220, Denmark

^g Sino-Danish Center for Education and Research, Aarhus, DK 8000, Denmark

Abstract

By introducing two amino groups in the central core of well-recognized small molecule acceptor F8IC for triggering a further intramolecular cyclization, a fully fused molecule DFA4 was realized. It exhibits typical n-type semiconductive character in devices of both organic photovoltaics (OPVs) and organic field effect transistors (OFETs). Moreover, the thermal stability of DFA4 was drastically enhanced compared with F8IC, suggesting its strong potential in fabricating organic electronics with longer lifetime.

Journal of Materials Chemistry C

Significantly enhanced thermal stability from a new kind of n-type organic semiconductor DFA4: a fully fused F8IC†

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Significantly enhanced thermal stability from a new kind of n-type organic semiconductor DFA4: a fully fused F8IC

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