Polythiophene Derivative with Phenothiazine−Vinylene Conjugated Side Chain: Synthesis and Its Application in Field-Effect Transistors
Polythiophene Derivative with Phenothiazine−Vinylene Conjugated Side Chain: Synthesis and Its Application in Field-Effect Transistors
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DOI：
10.1021/ma071402v
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发表时间：
2007-08
期刊：
影响因子：
5.5
通讯作者：
Y. Zou;Weiping Wu;Guangyi Sang;Yi Yang;Yunqi Liu;Yongfang Li
中科院分区：
文献类型：
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作者：
Y. Zou;Weiping Wu;Guangyi Sang;Yi Yang;Yunqi Liu;Yongfang Li
通过Stille偶联反应合成了一种新型的含吩噻嗪-亚乙烯基（PTZV）共轭侧链的聚噻吩衍生物PTZV-PT，并通过1HNMR、元素分析、GPC、TGA、DSC、UV-维斯吸收光谱、光致发光光谱和循环伏安法对其进行了表征.该聚合物可溶于普通有机溶剂，具有良好的热稳定性，在397 °C和140 °C的Tg下，重量损失为5%。PTZV-PT的重均分子量为5.45 × 104，多分散指数为1.48。PTZV-PT薄膜的吸收光谱在300 ~ 600 nm之间有一个宽的平台。根据空间电荷限制电流模型确定的PTZV-PT的空穴迁移率为4.7 × 10-3 cm 2 V-1 s-1。该聚合物的场效应空穴迁移率达到6.8 × 10-3 cm 2 V-1 s-1，开/关比为2.5 × 104，是溶液加工有机场效应晶体管（OFET）中性能最好的区域无规聚合物之一。初步研究…
A new polythiophene derivative with phenothiazine−vinylene (PTZV) conjugated side chains, PTZV−PT, was synthesized through the Stille coupling reaction and characterized by 1H NMR, elemental analysis, GPC, TGA, DSC, UV−vis absorption spectroscopy, photoluminescence spectroscopy, and cyclic voltammetry. The polymer is soluble in common organic solvents and possesses good thermal stability with 5% weight loss at the temperature of 397 °C and Tg of 140 °C. The weight-average molecular weight of PTZV−PT was 5.45 × 104 with the polydispersity index of 1.48. The absorption spectrum of PTZV−PT film displays a broad plateau between 300 and 600 nm. The hole mobility of PTZV−PT determined from space-charge-limited current model was 4.7 × 10-3 cm2 V-1 s-1. The field effect hole mobility of the polymer reached 6.8 × 10-3 cm2 V-1 s-1 with an on/off ratio of 2.5 × 104, which is among the best performance of the regiorandom polymers for the solution-processed organic field effect transistors (OFETs). The preliminary res...