The facile synthesis of a new five‐ring‐fused pentacene analog with four symmetrically fused thiophene ring units (Dithieno[2,3‐d;2′,3′‐d′]benzo[1,2‐b;4,5‐b′]dithiophene, C_n‐DTBDT) is presented. After aligning this material from solution, thin films for organic field‐effect transistors were obtained, resulting in excellent hole mobilities of up to 1.7 cm²V⁻¹s⁻¹, and on/off ratio of 10⁷.

中文翻译：

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Dithieno [2,3-d; 2'，3'-d']苯并[1,2-b; 4,5-b']二噻吩（DTBDT）作为半导体用于高性能，溶液处理的有机场效应晶体管

轻松合成具有四个对称稠合噻吩环单元的新五环稠合并五苯类似物（Dithieno [2,3- d ; 2′，3′- d ']苯并[1,2- b ; 4,5- b ']二噻吩，C _n -DTBDT）被提出。从溶液中对准该材料后，获得了用于有机场效应晶体管的薄膜，从而产生了高达1.7 cm ² V ^-1 s ^-1的出色空穴迁移率，开/关比为10 ⁷。