New conjugated copolymers based on benzo[1,2-b; 3,4-b′]dithiophene and derivatives of benzo[g]quinoxaline for bulk heterojunction solar cells
作者:Po-I Lee、Steve Lien-Chung Hsu、Jung Feng Lee、Hung-Yi Chuang、Piyun Lin
DOI:10.1002/pola.24477
日期:2011.2.1
A series of new low‐band gap copolymers based on dioctyloxybenzo[1,2‐b;3,4‐b′] dithiophene and bis(2‐thienyl)‐2,3‐diphenylbenzo[g]quinoxaline monomers have been synthesized via a Stille reaction. The effect of different functional groups attached to bis(2‐thienyl)‐2,3‐diphenylbenzo[g]quinoxaline was investigated and compared with their optical, electrochemical, hole mobility, and photovoltaic properties
一系列新的基于二辛氧基苯并[1,2-b; 3,4-b']二噻吩和双(2-噻吩基)-2-,3-二苯基苯并[g]喹喔啉单体的低带隙共聚物已通过斯蒂勒反应。研究了与双(2-噻吩基)-2-3,3-二苯基苯并[g]喹喔啉连接的不同官能团的作用,并将其与它们的光学,电化学,空穴迁移率和光伏性质进行了比较。共聚物的聚合物太阳能电池(PSC)器件采用ITO / PEDOT:PSS /共聚物:PCBM(1:4重量比)/ Ca / Al的构造制造。通过使用PbttpmobQ作为有源层,可以获得PSC器件的最佳性能。开路电压为0.8 V时的电源转换效率为1.42%,短路电流(JSC)为5.73 mA cm -2,并且在AM 1.5、100 mW cm -2的照明下实现了30.9%的填充率。©2010 Wiley Periodicals,Inc. J Polym Sci A部分:Polym Chem,2011年