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Stefan Haid, Magdalena Marszalek, Amaresh Mishra, Mateusz Wielopolski, Joël Teuscher, Jacques-E. Moser, Robin Humphry-Baker, Shaik M. Zakeeruddin, Michael Grätzel and Peter Bäuerle Significant Improvement of Dye-Sensitized Solar Cell Performance by Small Structural Modification in π-Conjugated Donor–Acceptor Dyes Advanced Functional Materials 22

Article first published online: 26 JAN 2012 | DOI: 10.1002/adfm.201102519

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Two donor-π-acceptor dyes are synthesized for application in dye-sensitized solar cells (DSSCs). The introduction of a phenyl ring between benzothiadiazole and cyanoacrylic acid acceptors leads to an over six times higher efficiency in DSSCs compared to the sensitizer without phenyl unit due to inhibition of back electron transfer and a reduced recombination rate.

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