Dragon-Boat-Type Heptathienoacenes: Synthesis, Structures, and Their Applications in OFETs
Chao Zhang, Yang Liu, Zhiying Ma, Guangxia Wang, Chunli Li, Fangxu Yang, Jianwu Shi, Rongjin Li, Hua Wang
Abstract
A novel synthetic strategy for efficient construction of dragon-boat-type heptathienoacenes (DBHTs) via the α–β position carbon–carbon cross-coupling between two dithienothiophenes is employed. Their crystal structures are confirmed by X-ray single-crystal analysis. The first thin film FET devices of heptathienoacenes are fabricated using OTS-treated SiO2/Si substrates, in which DBHT-5-based devices exhibit an unprecedented highest hole mobility value of 1.15 cm2 V–1 s–1 and on/off ratios over 106 with a threshold voltage of 0 V.
Topics & Concepts
ChemistryCrystal (programming language)Crystal structureCoupling (piping)Carbon fibersType (biology)Single crystalNanotechnologyOptoelectronicsCombinatorial chemistryCrystallographyMaterials scienceComposite materialComputer scienceBiologyEcologyComposite numberProgramming languageOrganic Electronics and PhotovoltaicsAdvanced Memory and Neural ComputingSemiconductor materials and devices