Fluorination as an effective tool to increase the open-circuit voltage and charge carrier mobility of organic solar cells based on poly(cyclopenta[2,1-b:3,4-b′]dithiophene-alt-quinoxaline) copolymers
作者:Pieter Verstappen、Jurgen Kesters、Wouter Vanormelingen、Gaël H. L. Heintges、Jeroen Drijkoningen、Tim Vangerven、Lidia Marin、Simplice Koudjina、Benoît Champagne、Jean Manca、Laurence Lutsen、Dirk Vanderzande、Wouter Maes
DOI:10.1039/c4ta06054g
日期:——
Quinoxaline fluorination leads to enhanced properties and efficiencies in PCPDTQx-based polymer solar cells.
喹噁啉氟化反应可以提高PCPDTQx基聚合物太阳能电池的性能和效率。
Quinoxaline derivatives with broadened absorption patterns
Quinoxaline-based semiconducting materials are currently of high interest in the field of organic photovoltaics. The number of structural variations employed has been, however, quite limited to date. In this paper we report on the synthesis of a series of quinoxaline monomers and triads with improved optical features. This was achieved by using conjugated linkers, i.e. ethenyl, butadienyl and/or aryl groups, to graft the solubilizing alkyl side chains onto the central quinoxaline core. The influence of the appended groups on the light-harvesting properties of the materials is briefly discussed.