用于有机薄膜晶体管的可溶液加工二酮吡咯并吡咯衍生物作为有机半导体

Solution-Processable Diketopyrrolopyrrole Derivatives as Organic Semiconductors for Organic Thin-Film Transistors.

作者信息

Kim Hyekyoung, Van Nguyen Pham Thanh, Kim Choongik, Seo SungYong

机构信息

Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea.

Department of Chemistry, Pukyong National University, Busan 48513, Korea.

出版信息

J Nanosci Nanotechnol. 2018 Jan 1;18(1):705-712. doi: 10.1166/jnn.2018.13937.

DOI:10.1166/jnn.2018.13937

PMID:29768898

Abstract

Solution-processable diketopyrrolopyrrole derivatives having acetylene, 2,5-bis(2-ethylhexyl)-3-(5-(phenylethynyl)thiophen-2-yl)-6-(thiophen-2-yl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione (3), 2,5-bis (2-ethylhexyl)-3-(thiophen-2-yl)-6-(5-(thiophen-2-ylethynyl)thiophen-2-yl)-2,5-dihydropyrrolo[3,4-c] pyrrole-1,4-dione (4), and 6,6'-((thiophene-2,5-diylbis(ethyne-2,1-diyl))bis(thiophene-5,2-diyl)) bis(2,5-bis(2-ethylhexyl)-3-(thiophen-2-yl)-2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione) (5) were synthesized and characterized as organic semiconductors for organic thin-film transistors (OTFTs). For the fabrication of thin films based on solution processable compounds, drop-casting (DC) and solution-shearing (SS) were employed. Thin films of compound 5 exhibited p-channel characteristics with carrier mobility as high as 5.7 × 10-4 cm2/Vs and a current on/off ratio of 104-106 for top-contact/bottom-gate OTFT devices.

摘要

通过溶液法可加工的二酮吡咯并吡咯衍生物，包括乙炔基的2,5-双(2-乙基己基)-3-(5-(苯乙炔基)噻吩-2-基)-6-(噻吩-2-基)-2,5-二氢吡咯并[3,4-c]吡咯-1,4-二酮(3)、2,5-双(2-乙基己基)-3-(噻吩-2-基)-6-(5-(噻吩-2-乙炔基)噻吩-2-基)-2,5-二氢吡咯并[3,4-c]吡咯-1,4-二酮(4)以及6,6'-((噻吩-2,5-二基双(乙炔-2,1-二基))双(噻吩-5,2-二基))双(2,5-双(2-乙基己基)-3-(噻吩-2-基)-2,5-二氢吡咯并[3,4-c]吡咯-1,4-二酮)(5)被合成并被表征为用于有机薄膜晶体管(OTFTs)的有机半导体。对于基于溶液可加工化合物的薄膜制备，采用了滴铸法(DC)和溶液剪切法(SS)。化合物5的薄膜对顶接触/底栅OTFT器件表现出p沟道特性，载流子迁移率高达5.7×10-4 cm2/Vs，电流开/关比为104 - 106。