Effectively Improving Extinction Coefficient of Benzodithiophene and Benzodithiophenedione-based Photovoltaic Polymer by Grafting Alkylthio Functional Groups

Chemistry, an Asian Journal
Qi WangJianhui Hou

Abstract

Alkylthio groups have received much attention in the polymer community for their molecular design applications in polymer solar cells. In this work, alkylthio substitution on the conjugated thiophene side chains in benzodithiophene (BDT) and benzodithiophenedione (BDD)-based photovoltaic polymer was used to improve the extinction coefficient. The introduction of alkylthio groups into the polymer increased its extinction coefficient while the HOMO levels, bandgaps, and absorption bands remained the same. Thus, the short circuit current density (Jsc ) and the efficiency of the device were much better than those of the control device. Thus, introducing the alkylthio functional group in polymer is an effective method to tune the extinction coefficient of photovoltaic polymer. This provides a new path to improve photovoltaic performance without increasing active layer thickness, which will be very helpful to design advanced photovoltaic materials for high photovoltaic performance.

References

Jan 20, 2005·Journal of the American Chemical Society·Peng WangMichael Grätzel
Nov 29, 2007·Angewandte Chemie·Barry C Thompson, Jean M J Fréchet
Oct 14, 2009·Journal of the American Chemical Society·Jianhui HouGang Li
Aug 19, 2010·Advanced Materials·Christoph J BrabecShawn P Williams
Jan 29, 2013·Advanced Materials·Huiqiong ZhouAlan J Heeger
May 28, 2013·Journal of the American Chemical Society·Deping QianJianhui Hou
May 30, 2014·Chemical Reviews·Ye HuangGuillermo C Bazan
Apr 23, 2015·Journal of the American Chemical Society·Carl Poelking, Denis Andrienko
Aug 8, 2015·Chemical Reviews·Luyao LuLuping Yu

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