Dual-function surfactant strategy for two-dimensional organic semiconductor crystals towards high-performance organic field-effect transistors

• 作者: Zheng Chen Shuming Duan Xiaotao Zhang Wenping Hu
• 来源期刊: 中国科学：化学（英文版）
• 年，卷（期）: 2021,（6）
• 所属期刊栏目: ARTICLES
• 页码范围: 1057-1062
• 页数: 6页
• 语种: 英文

摘要

Two-dimensional (2D) organic semiconductor crystals (OSCs) are ideal platforms for investigating fundament materials as well as achieving high-performance organic field-effect transistors (OFETs).The surfactants played an important role in the 2DOSCs growth in previous studies.However,residual surfactants may cause performance degradation of devices.Herein,a simple and effective dual-function surfactant strategy is used to control the growth of large-area few-molecular-layer 2DOSCs.The introduction of phosphatidylcholine decreases the interfacial tension and improves the crystal growth dynamics,resulting in high-quality and large-area few-molecular-layer 2,6-bis(4-hexylphenyl)anthracene (C6-DPA) 2DOSC.The additive also pas-sivates charge traps,boosting the mobility of 2DOSC-based OFETs by almost threefold.This method is also suitable for the growth of various high-quality 2DOSCs,opening up a new avenue for high-quality 2DOSCs towards high-performance OFETs.