Effect of substituents on self-assembling behaviors and charge transport properties of nonplanar heterocycloarenes

作     者：Jiangyu Zhu Wenhao Li Rong Zhang Yan Zhao Xuefeng Lu Yunqi Liu 

作者机构：Department of Materials ScienceState Key Laboratory of Molecular Engineering of PolymersFudan UniversityShanghai 200433China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2023年第66卷第10期

页      面：2903-2911页

核心收录：

学科分类：080904[工学-电磁场与微波技术] 081704[工学-应用化学] 0809[工学-电子科学与技术（可授工学、理学学位）] 07[理学] 08[工学] 0817[工学-化学工程与技术] 070303[理学-有机化学] 0703[理学-化学] 

基　　金：supported by the National Natural Science Foundation of China(52073063,61890940) the National Key R&D Program of China(2018YFA0703200) the Natural Science Foundation of Shanghai(22ZR1405800 and 23ZR1405100) the Program for Professor of Special Appointment(Eastern Scholar)at the Shanghai Institutions of Higher Learning 

主　　题：heterocycloarenes self-assembling organic semiconductor organic thin film transistor 

摘      要：(Hetero)cycloarenes possessing rigid molecular skeletons and largeπ-systems are the potential active materials in various electronic ***,the development of their organic electronics still lags far behind the synthetic ***,in order to bridge this gap,we reported the study of organic semiconductor materials based on heterocycloarenes in detail about the relationship between structure,properties,and device *** varying straight alkyl chain substituted butterflyshaped heterocycloarenes PTZs were strategically *** with bulky aryl(mesityl)substituted PTZ1,PTZs show additional self-assembly ***-dependent^(1)H NMR spectra indicated that the self-assembly behavior can be modulated by the alkyl chain *** alkyl chain length substituted heterocycloarene PTZ-C6 showed the strongest association constants of 490 M^(–1)in solution,and a similar trend was also observed in solid state by thin film absorption ***,despite the nonplanar conjugated backbones,solution-processing thin film transistor based on PTZ-C6 exhibits hole mobility up to 0.13 cm^(2)V^(–1)s^(–1)and considerable current on/off ratio of 10^(5).Our study demonstrates that substituent engineering of heterocycloarenes is a powerful strategy for modulating self-assembling structures and promoting transistor device performance.