Molecular Modification of 2,6-Diphenylbenzo[1,2-<i>b</i>:4,5-<i>b</i>′]dichalcogenophenes by Introduction of Strong Electron-withdrawing Groups: Conversion from p- to n-Channel OFET Materials
作者:Kazuo Takimiya、Yoshihito Kunugi、Hideaki Ebata、Tetsuo Otsubo
DOI:10.1246/cl.2006.1200
日期:2006.10
2,6-Diphenylbenzo[1,2-b:4,5-b′]dithiophene (DPh-BDT) and -diselenophene (DPh-BDS) as p-channel semiconducting materials were modified by introducing fluoro, cyano, or trifluoromethyl groups into the attached phenyl moieties. On examination of organic field-effect transistors fabricated using these modified compounds, the trifluoromethyl-substituted DPh-BDT and BDS derivatives were found to act as n-channel semiconductors with high electron mobilities of 0.044 and 0.10 cm2 V−1 s−1, respectively.
2,6-Diphenylbenzo[1,2-b:4,5-b′]dithiophene (DPh-BDT) 和 -diselenophene (DPh-BDS) 作为 p 沟道半导体材料,通过在所附苯基中引入氟基、氰基或三氟甲基进行了改性。在对使用这些改性化合物制造的有机场效应晶体管进行检查时发现,三氟甲基取代的 DPh-BDT 和 BDS 衍生物可用作 n 沟道半导体,电子迁移率分别高达 0.044 和 0.10 cm2 V-1 s-1。