Journal
DYES AND PIGMENTS
Volume 161, Issue -, Pages 382-388Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.dyepig.2018.09.050
Keywords
Push-pull chiral system; Tetrathiahelicene; Dye-sensitized solar cells
Funding
- University degli Studi di Milano
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The synthesis, photophysical and electrochemical characterization, theoretical calculations and photovoltaic studies of a push-pull dye with an unconventional nonplanar tetrathiahelicene pi-spacer between the donor acceptor groups, are reported. The molecule exhibits suitable HOMO LUMO levels to be used in DSSC. The presence of the donor-acceptor helical architecture allows the internal charge transfer and subsequent electron injection to the conduction band of TiO2 leading to the good photocurrent value of 4.6 mA cm(-2).
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