Cyclopentadithiophene based polymers—a comparison of optical, electrochemical and organic field-effect transistor characteristics
作者:Masaki Horie、Leszek A. Majewski、Michael J. Fearn、Chin-Yang Yu、Yi Luo、Aimin Song、Brian R. Saunders、Michael L. Turner
DOI:10.1039/b924126d
日期:——
A series of cyclopentadithiophene based polymers have been synthesized by oxidative polymerisation or palladium-catalyzed coupling reactions. Polymers have been prepared with backbones containing benzothiadiazole, benzoxadiazole, 2,2â²-bithiophene, phenyl and fluorene units. The backbone structure is shown to have a large effect on the film morphology, and the optical and electrochemical properties in solution and the solid state. We show that the polymer composition can be used to tune the band gap over the entire visible spectrum. Spin-coated films of these polymers have been used as the active layer of organic field effect transistors and hole mobilities up to 3.7 Ã 10â3 cm2 Vâ1 sâ1 have been measured under ambient conditions.
通过氧化聚合或钯催化偶联反应合成了一系列基于环戊二噻吩的聚合物。已制备出主链含有苯并噻二唑、苯并恶二唑、2,2-联噻吩、苯基和芴单元的聚合物。主链结构对薄膜形态、溶液和固态下的光学和电化学性能有很大影响。我们表明,聚合物组合物可用于调节整个可见光谱上的带隙。这些聚合物的旋涂薄膜已被用作有机场效应晶体管的有源层,在环境条件下测量到的空穴迁移率高达 3.7 × 10×3 cm2 V×1 s×1。