Synthesis and optoelectronic property manipulation of conjugated polymer photovoltaic materials based on benzo[d]-dithieno[3,2-b;2′,3′-f]azepine
作者:Jian Wang、Pan Yin、Yue Wu、Gangjian Liu、Chaohua Cui、Ping Shen
DOI:10.1016/j.polymer.2018.06.007
日期:2018.7
develop new conjugated polymers (CPs) based on heteroepines, a soluble azepine moiety of benzo [d]-dithieno [3,2-b; 2′,3′-f]azepine was copolymerized with different building blocks to obtain a series of CPs. A broad absorption range of 300–850 nm and the desired optical bandgaps (1.54–2.42 eV) are easily accessible by varying different copolymerization units. The HOMO levels of polymers are observed
要开发新的基于杂多烯的共轭聚合物(CPs),这是苯并[ d ]-二硫代[3,2-b; 将2',3'- f ]氮杂with与不同的结构单元共聚以获得一系列CP。通过改变不同的共聚单元,可以轻松获得300-850 nm的宽吸收范围和所需的光学带隙(1.54-2.42 eV)。观察到聚合物的HOMO能级几乎为-5.21 eV,LUMO能级在-2.82至-3.52 eV之间。制造了以这些聚合物为供体材料的聚合物太阳能电池(PSC),以探索在有机光伏中的应用潜力。初步研究显示,基于这些具有较高V值的聚合物,PSC的最佳功率转换效率为1.28%OC值为0.84V。尽管这些新型聚合物的光伏性能不像我们预期的那样高,但第一次大胆尝试为扩展基于氮杂环庚烷的聚合物的应用领域提供了一些良好的参考。