Synthesis and Photovoltaic Effect in Dithieno[2,3-<i>d</i>:2′,3′-<i>d</i>′]Benzo[1,2-<i>b</i>:4,5-<i>b</i>′]dithiophene-Based Conjugated Polymers
作者:Hae Jung Son、Luyao Lu、Wei Chen、Tao Xu、Tianyue Zheng、Bridget Carsten、Joseph Strzalka、Seth B. Darling、Lin X. Chen、Luping Yu
DOI:10.1002/adma.201204238
日期:2013.2.13
Conjugated polymers based on a heteroacene, 3,7‐dialkyl‐dithieno[2,3‐d:2′,3′‐d′]benzo[1,2‐b:4,5‐b′]dithiophene (DBD), are synthesized. These polymers show broad UV–vis absorption with energy bandgaps below 1.7 eV. PTDBD2, showing good miscibility in a polymer/phenyl‐C71‐butyric acid methyl ester (PC71BM) blend film, achieves a power conversion efficiency (PCE) of 7.6%. The results indicate that copolymers
基于杂并苯的共轭聚合物,3,7-二烷基-二噻吩并[2,3-- d:2',3'- d ']苯并[1,2- b:4,5- b ']二噻吩(DBD),是合成的。这些聚合物在1.7 eV以下的能带隙下显示出广泛的UV-vis吸收。PTDBD2在聚合物/苯基-C71-丁酸甲酯(PC 71 BM)共混膜中显示出良好的混溶性,实现了7.6%的功率转换效率(PCE)。结果表明,含有DBD的共聚物是高性能有机太阳能电池的有希望的候选者。