A C6-DPA/PMMA binary blend ink for high-performance inkjet-printed organic field-effect transistors. Issue 1 (5th December 2022)

• Record Type: Journal Article
• Authors: Liu, Yang; Yang, Chenhuai; Jiang, Ting; Bao, Yuanrong; Wang, Lu; Ji, Deyang; Yang, Fangxu; Jiao, Fei; Hu, Wenping
• Is Part Of: Materials advances. Volume 4:Issue 1(2023)
• Page Start: 302
• Page End: 306
• Publication Date: 2022-12-05
• Subjects: 620.11
• DOI: 10.1039/d2ma00993e
• Languages: English
• ISSNs: 2633-5409

Abstract

Abstract : By introducing insulating polymers and careful control of the vertical phase separation of the functional C6 -DPA/PMMA binary blend ink, the crystallization of a C6 -DPA film and device-to-device uniformity improved distinctly. Abstract : A solution-processed small-molecule/insulator binary blend offers an optimized blending system for inkjet-printing technology. Due to the spontaneous vertical phase separation, a small-molecule OSC thin-film could be deposited with good crystallization and preferred orientation. However, the uniformity of the semiconducting thin-film is still a critical issue, and the intrinsic properties of the blend ink used in inkjet printing, especially ink stability, are rarely reported. In this paper, a blend system of 2, 6-bis(4-hexylphenyl)anthracene (C6 -DPA) and polymethyl methacrylate (PMMA) is used to prepare a high-performance and stabilized electronic ink. Based on this ink, the highest mobility of inkjet-printed organic field-effect transistors is up to 2.01 cm 2 V −1 s −1 with bottom-gate and top-contact structures.