Narrow band-gap copolymers with two acceptors of benzo[1,2-c;3,4-c′]bis[1,2,5]thiadiazole and Benzo[c][1,2,5] thiadiazole: Synthesis, characteristics and application in field-effect transistors
作者:Chen Zhang、Zhihui Chen、Weixuan Zeng、Gui Yu、Chuluo Yang
DOI:10.1016/j.dyepig.2016.03.037
日期:2016.7
copolymers containing two acceptors (benzo[1,2-c;3,4-c′]bis[1,2,5] thiadiazole and benzo[c][1,2,5]thiadiazole are designed and synthesized. Two kinds of side chains (2-octyl-1-dodecyl chain and siloxane-terminated hexyl chain) are added to the copolymer backbone. Both polymers show very narrow band gaps of ∼1.0 eV. Bottom-gate and bottom-contact transistors based on the polymers are fabricated and exhibit
设计并合成了包含两个受体的一系列共聚物(苯并[1,2-c; 3,4-c']双[1,2,5]噻二唑和苯并[c] [1,2,5]噻二唑。在共聚物主链上添加了两种侧链(2-辛基-1-十二烷基链和硅氧烷封端的己基链),两种聚合物均显示出约1.0 eV的非常窄的带隙。制备了这些聚合物并表现出p型场效应,其空穴迁移率高达1.04×10 -2 cm 2 V -1 s -1。