Synthesis, Characterization, and Field Effect Transistor Properties of Regioregular Poly(3-alkyl-2,5-selenylenevinylene)
Synthesis, Characterization, and Field Effect Transistor Properties of Regioregular Poly(3-alkyl-2,5-selenylenevinylene)
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DOI：
10.1021/ma200910a
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发表时间：
2011-07-12
期刊：
影响因子：
5.5
通讯作者：
Heeney, Martin
中科院分区：
文献类型：
--
作者：
Al-Hashimi, Mohammed;Baklar, Mohammed A.;Heeney, Martin
本文报道了在微波辅助Stille偶联条件下，由2,5-二溴-3-全环硒烯和(E)-1,2-二（三丁基）乙烯聚合合成新型聚（3-烷基-2,5-亚硒基）乙烯（PSV）。制备了含有己基和癸基侧链的聚合物。十二烷基取代聚合物在常见有机溶剂中具有良好的溶解性，H-1核磁共振分析表明其侧链区域规整度超过90%。聚合物在溶液中在621 nm处表现出最大的吸收，在成膜时具有明显的吸收红移。由PSV制成的薄膜晶体管显示出高达0.01 cm(2)/(V s)的空穴载流子迁移率。当使用无羟基有机介质作为栅绝缘体时，聚合物表现出平衡的双极性性能。
Here we report the synthesis of novel poly(3-alkyl-2,5-selenylenevinylene)s (PSV) by the polymerization of 2,5-dibromo-3-allcylselenophene and (E)-1,2-bis(tributylstannyl)ethylene under microwave-assisted Stille coupling conditions. Polymers containing hexyl and decyl side chains were prepared. The decyl-substituted polymer exhibited good solubility in common organic solvents, and H-1 NMR analysis indicated a side-chain regioregularity in excess of 90%. The polymer exhibits an absorption maxima at 621 nm in solution, with a significant red shift in absorption upon film formation. Thin film transistors fabricated from PSV exhibited hole carrier mobilities up to 0.01 cm(2)/(V s). The polymer displayed balanced ambipolar performance when hydroxyl free organic dielectrics were used as the gate insulator.