A Facile Synthesis of Low-Band-Gap Donor–Acceptor Copolymers Based on Dithieno[3,2-<i>b</i>:2′,3′-<i>d</i>]thiophene
作者:Sung-Yu Ku、Christopher D. Liman、Daniel J. Burke、Neil D. Treat、Justin E. Cochran、Elizabeth Amir、Louis A. Perez、Michael L. Chabinyc、Craig J. Hawker
DOI:10.1021/ma202095j
日期:2011.12.27
synthesize the bisthienyl sulfide intermediate. This simplifies the overall DTT synthesis to only four steps with a 44% yield and facilitates its use as a donor unit in low-band-gap polymers. Solution processable alternating D-π–A-π polymers (DTTBTO and DTTDPP) have been synthesized with DTT as the donor unit and either a benzothiodiazole derivative (BTO) or fused ring 1,4-diketopyrrolo[3,4-c]pyrrole (DPP)
已经开发了一种可溶的,可扩展的合成路线,以形成可溶性二噻吩并[3,2- b:2',3'- d ]噻吩(DTT)单元,该路线利用Stille偶联反应有效地合成了双联苯硫醚中间体。这将整个DTT合成简化为仅四个步骤,产率为44%,并有助于将其用作低带隙聚合物中的供体单元。已合成了可溶液加工的交替D-π-A-π聚合物(DTTBTO和DTTDPP),其中DTT为供体单元,且苯并噻二唑衍生物(BTO)或稠合环1,4-二酮基吡咯[3,4- c]吡咯(DPP)用作受体单元。定制这些供体-受体系统的结构的能力允许对带隙工程,吸收率,V oc和要开发并应用于高性能有机太阳能电池设计的效率的结构/性质关系的详细了解。