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Preparation of 6-aminocyclohepta-2,4-dien-1-one Derivatives via Tricarbonyltroponeiron
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Dragon-Boat-Type Heptathienoacenes: Synthesis, Structures, and Their Applications in OFETs
Chao Zhang1, Yang Liu2, Zhiying Ma1
1Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China.
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.
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