Absorption enhancement of oligothiophene dyes through the use of a cyanopyridone acceptor group in solution-processed organic solar cells

Akhil Gupta; Abdelselam Ali; Ante Bilic; Mei Gao; Katalin Hegedus; Birendra Singh; Scott E. Watkins; Gerard J. Wilson; Udo Bach; Richard A. Evans

doi:10.1039/C2CC17325E

Absorption enhancement of oligothiophene dyes through the use of a cyanopyridone acceptor group in solution-processed organic solar cells†

Akhil Gupta,^ab Abdelselam Ali,^a Ante Bilic,^c Mei Gao,^a Katalin Hegedus,^a Birendra Singh,^a Scott E. Watkins,*^a Gerard J. Wilson,^a Udo Bach^b and Richard A. Evans*^a

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^a CSIRO Materials Science and Engineering, Flexible Electronics Theme, Bayview Avenue, Clayton South, Victoria, Australia
E-mail: scott.watkins@csiro.au, richard.evans@csiro.au
Fax: +61395452446
Tel: +61395452507

^b Department of Materials Engineering, Monash University, Wellington Road, Clayton 3800 Victoria, Australia

^c CSIRO Mathematics Informatics and Statistics, Bayview Avenue, Victoria, Australia

Abstract

Improvements in the performance of small molecule-based organic solar cells have been reported through the use of a cyanopyridone acceptor group. This acceptor fragment enhances the absorbance of an oligothiophene-based dye and enables the addition of a solubilising alkyl chain that facilitates simple device fabrication from solution.

Chemical Communications

Absorption enhancement of oligothiophene dyes through the use of a cyanopyridone acceptor group in solution-processed organic solar cells†

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Absorption enhancement of oligothiophene dyes through the use of a cyanopyridone acceptor group in solution-processed organic solar cells

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