Single-crystal field-effect transistors of benzoannulated fused oligothiophenes and oligoselenophenes
Single-crystal field-effect transistors of benzoannulated fused oligothiophenes and oligoselenophenes
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DOI：
10.1063/1.2535617
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发表时间：
2007-02
影响因子：
4
通讯作者：
Koichi M. T. Yamada;T. Okamoto;K. Kudoh;A. Wakamiya;S. Yamaguchi;J. Takeya
中科院分区：
文献类型：
--
作者：
Koichi M. T. Yamada;T. Okamoto;K. Kudoh;A. Wakamiya;S. Yamaguchi;J. Takeya
最近合成的苯并环化稠合低聚噻吩和低聚硒吩被引入作为高性能有机场效应晶体管的空气稳定有机半导体。为了评估材料固有的电子迁移率，采用单晶晶体管技术来研究两种代表性化合物：苯并环五并噻吩并苯 f-B5TB 及其硒类似物 f-BT3STB。由于硒化合物具有相当大的 Se---Se 轨道相互作用，其迁移率高达约 1.1cm2∕Vs。该材料同时具有高流动性和在环境大气中高耐久性的特点。
Recently synthesized benzoannulated fused oligothiophenes and oligoselenophenes are introduced as air-stable organic semiconductors for high-performance organic field-effect transistors. To evaluate electronic mobility intrinsic to the materials, the technique of single-crystal transistors is employed for two representative compounds of benzoannulated pentathienoacene f-B5TB and its selenium analog f-BT3STB. High mobility of approximately 1.1cm2∕Vs is achieved for the selenium compound due to its considerable Se---Se orbital interactions. The materials simultaneously bear features of high mobility and high duration in ambient atmosphere.