Solution Processable Monosubstituted Hexa-Peri-Hexabenzocoronene Self-Assembling Dyes
Shijie Ren, Chao Yan, Doojin Vak, David J Jones, Andrew B Holmes, Wallace WH Wong
ADVANCED FUNCTIONAL MATERIALS | WILEY-V C H VERLAG GMBH | Published : 2012
Molecular organization behavior and visible light absorption ability are important factors for organic materials to be used in efficient bulk heterojunction solar cells applications. In this context, a series of monosubstituted fluorenyl hexa-peri-hexabenzocoronene (FHBC) are synthesized with the aim to combine the self-association property of the FHBC unit with broadened light absorption of a small molecule organic dye, bisthienylbenzothiadiazole (TBT). Optical and electrochemical properties of the FHBC compounds vary according to their structures. Introduction of a TBT unit into the FHBC system broadens the absorption. All of the FHBC compounds show strong π-π intermolecular association in..View full abstract
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Awarded by Australian Research Council
The authors thank the Australian Solar Institute (Fellowship to W. W. H. W. and project grant), the Australian Research Council (DP0877325), the Victorian State Government Department of Business Innovation (Victorian Science Agenda) and Department of Primary Industries (Energy Technology Innovation Strategy), the Commonwealth Scientific and Industrial Research Organisation and the University of Melbourne for supporting the Victorian Organic Solar Cells Consortium. The authors also thank the Australian Synchrotron for the use of the SAXS/WAXS beamline for the X-ray experiments presented in this work.