Diketopyrrolopyrrole-based liquid crystalline conjugated donor-acceptor copolymers with reduced band gap for polymer solar cells
作者:Yunli Han、Lie Chen、Yiwang Chen
DOI:10.1002/pola.26394
日期:2013.1.15
poly[4,8‐bis(2‐ethylhexyloxy)benzo[1,2‐b:4,5‐b′]dithiophene‐alt‐3,6‐bis(thiophen‐5‐yl)‐2,5‐bis[4‐(4′‐cyanobiphenyloxy)dodecyl]‐2,5‐dihydropyrrolo[3,4‐c]pyrrole‐1,4‐dione] (PBDTDPPcbp) and poly[N‐9′‐heptadecanyl‐2,7‐carbazole‐alt‐3,6‐bis(thiophen‐5‐yl)‐2,5‐bis[4‐(4′‐cyano‐biphenyloxy)dodecyl]‐2,5‐dihydropyrrolo[3, 4‐c]pyrrole‐1,4‐dione] (PCBTDPPcpb) with reduced band gap, respectively. The LC properties
一种新的液晶(LC)受体单体2,5-双[4-(4'-氰基联苯氧基)十二烷基] -3,6-二噻吩-2-基-吡咯并[3,4-c]吡咯-1,4-通过将氰基联苯液晶元掺入二酮吡咯并吡咯(DPP)中来合成二酮(TDPPcbp)。该单体与双(2-乙基己氧基)苯并[1,2-b:4,5-b']二噻吩(BDT)和N-9'-十七碳二烯丙基咔唑(CB)供体获得供体-受体交替共聚物聚[4,8-双(2-乙基己氧基)苯并[1,2-b:4,5-b']二噻吩-alt-3,6 -双(噻吩-5-基)-2,5-双[4-(4'-氰基联苯氧基)十二烷基] -2,5-二氢吡咯并[3,4-c]吡咯-1,4-二酮](PBDTDPPcbp)和聚[N-9'-十七烷基-2,7-咔唑-alt-3,6-双(噻吩-5-基)-2,5-双[4-(4'-氰基-联苯氧基)十二烷基]-带隙减小的2,5-二氢吡咯并[3,4-c]吡咯-1,4-二酮](PCBTD