Introducing a new triazoloquinoxaline‐based fluorene copolymer for organic photovoltaics: Synthesis, characterization, and photovoltaic properties
作者:Derya Baran、Felix M. Pasker、Stephan Le Blanc、Gregor Schnakenburg、Tayebeh Ameri、Sigurd Höger、Christoph J. Brabec
DOI:10.1002/pola.26465
日期:2013.2.15
A new donor‐acceptor copolymer consisting of triazoloquinoxaline and 9,9‐dialkylfluorene units on the main chain has been synthesized, characterized and evaluated as donor material in bulk heterojunction solar cells using PC61BM as an acceptor. The resulting polymer PTQF showed good thermal stability and solubility in common organic solvents. Cyclic Voltammetry measurements showed that the PTQF has
合成了一种新的供体-受体共聚物,该共聚物由三唑并喹喔啉和主链上的9,9-二烷基芴单元组成,使用PC 61 BM作为受体,对其进行了表征和评估,作为整体异质结太阳能电池中的供体材料。所得的聚合物PTQF显示出良好的热稳定性和在普通有机溶剂中的溶解性。循环伏安法测量表明PTQF的HOMO-LUMO能级分别为-5.13和-3.62 eV。DFT计算显示,HOMO在整个噻吩和芴单元上均发生了离域化,而LUMO主要在三唑和吡嗪单元上进行了离域化。PTQF在可见光区域广泛吸收,并显示1.4 eV的带隙。光伏器件在PTQF:PC 61:1上显示出1.7%的效率使用Ca / Ag电极的BM混合比。©2012 Wiley Periodicals,Inc. J Polym Sci A部分:Polym Chem,2013年