中文版 | English
CSpace
Fully Fused Indacenodithiophene-Centered Small-Molecule n-Type Semiconductors for High-Performance Organic Electronics
Duan, Tainan1; Wang, Jia2; Shi, Wenrui3; Li, Yulu1; Tu, Kaihuai1; Bi, Xingqi4,5,6; Zhong, Cheng7; Lv, Jie1,8; Yang, Ke1; Xiao, Zeyun1
2024-08-20
摘要Developing novel n-type organic semiconductors is an on-going research endeavour, given their pivotal roles in organic electronics and their relative scarcity compared to p-type counterparts. In this study, a new strategy was employed to synthesize n-type organic semiconductors featuring a fully fused conjugated backbone. By attaching two sets of adjacent amino and formyl groups to the indacenodithiophene-based central cores and triggering a tandem reaction sequence of a Knoevenagel condensation-intramolecular cyclization, DFA1 and DFA2 were realized. The solution-processed organic field effect transistors based on DFA1 exhibited unipolar n-type transport character with a decent electron mobility of ca. 0.10 cm2 V-1 s-1 (ca. 0.038 cm2 V-1 s-1 for DFA2 based devices). When employing DFA1 as a third component in organic solar cells, a high power conversion efficiency of 19.2 % can be achieved in ternary devices fabricated with PM6 : L8-BO : DFA1. This work provides a new pathway in the molecular engineering of n-type organic semiconductors, propelling relevant research forward. Two n-type organic semiconductors featured with fully fused structure has been synthesized by a newly developed strategy to generate high-performance organic field-effect transistors and organic solar cells. The properties of these new organic semiconductors were systematically investigated and elucidated experimentally. image
关键词Fully Fused Structure n-Type Organic Semiconductors Single-Crystal Analysis Organic Field-Effect Transistors Organic Solar Cells
DOI10.1002/anie.202407890
发表期刊ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
ISSN1433-7851
页码9
通讯作者Duan, Tainan(tnduan@cigit.ac.cn) ; Xiao, Zeyun(xiao.z@cigit.ac.cn) ; Kan, Bin(kanbin04@nankai.edu.cn) ; Zhao, Yan(zhaoy@fudan.edu.cn)
收录类别SCI
WOS记录号WOS:001293687700001
语种英语