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Design and characterization of methoxy modified organic semiconductors based on phenyl[1]benzothieno[3,2-b][1]benzothiophene

机译:基于苯基[1]苯并噻吩并[3,2- b ] [1]苯并噻吩的甲氧基改性有机半导体的设计与表征

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摘要

Two environmentally and thermally stable [1]benzothieno[3,2-b][1]benzothiophene (BTBT) derivatives, BOP-BTBT and DBOP-BTBT are successfully synthesized and analyzed as active layers in organic thin film transistors. The effects of methoxy on BTBT based OTFT materials are reported for the first time. The experimental results show an excellent optimization influence of methoxy group on the OTFT performance with an improved hole transport mobility up to 0.63 cm2 V?1 s?1 (BOP-BTBT) and 3.57 cm2 V?1 s?1 (DBOP-BTBT). Meantime the mono- and bis-substituted derivatives are compared in terms of their physical properties and device performance. We find that the threshold voltage decreases when more methoxy groups are introduced.
机译:成功合成了两种对环境和热稳定的[1] benzothieno [3,2- b ] [1]苯并噻吩(BTBT)衍生物BOP-BTBT和DBOP-BTBT并作为有机层中的活性层进行了分析薄膜晶体管。首次报道了甲氧基对基于BTBT的OTFT材料的影响。实验结果表明,甲氧基对OTFT性能的优化影响极佳,空穴传输迁移率提高至0.63 cm 2 V ?1 < / sup> s ?1 (BOP-BTBT)和3.57 cm 2 V ?1 s ?1 (DBOP-BTBT)。同时,比较了单取代和双取代的衍生物的物理性质和器件性能。我们发现,当引入更多的甲氧基时,阈值电压降低。

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