Novel 4,8-benzobisthiazole copolymers and their field-effect transistor and photovoltaic applications
作者:Gary Conboy、Rupert G. D. Taylor、Neil J. Findlay、Alexander L. Kanibolotsky、Anto R. Inigo、Sanjay S. Ghosh、Bernd Ebenhoch、Lethy Krishnan Jagadamma、Gopala Krishna V. V. Thalluri、Muhammad T. Sajjad、Ifor D. W. Samuel、Peter J. Skabara
DOI:10.1039/c7tc03959j
日期:——
Such interactions enable a control over the degree of planarity through altering their number and strength, in turn allowing for tuning of the band gap. The resulting 4,8-BBT materials gave enhanced mobility in p-type organic field-effect transistors of up to 2.16 × 10−2 cm2 V−1 s−1 for pDPP2ThBBT and good solar cell performance of up to 4.45% power conversion efficiency for pBT2ThBBT.
一系列含有苯并[1,2- d:4,5- d的共聚物']双(噻唑)(BBT)单元已与联噻吩基-二酮吡咯并吡咯(DPP),二噻吩并吡咯(DTP),苯并噻二唑(BT),苯并二噻吩(BDT)或4,4'-二烷氧基比噻唑(BTz)共聚单体进行设计和合成。所得的聚合物具有与通过BBT单元的2,6-位的更常见的取代途径正交的共轭途径,从而促进相邻单体单元的策略性放置的杂原子之间的分子内非共价相互作用。这种相互作用使得能够通过改变平面度的数量和强度来控制平面度,进而允许调整带隙。所得的4,8-BBT材料在p型有机场效应晶体管中的迁移率高达2.16×10 -2 cm 2 V -1š -1为pDPP2ThBBT和最多为4.45%的功率转换效率的良好的太阳能电池的性能pBT2ThBBT。