The synthesis, photophysical and electrochemical characterization, theoretical calculations and photovoltaic studies of a push-pull dye with an unconventional nonplanar tetrathiahelicene π−spacer between the donoracceptor 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..
An unconventional helical push-pull system for solar cells / D. Dova, S. Cauteruccio, N. Manfredi, S. Prager, A. Dreuw, S. Arnaboldi, P.R. Mussini, E. Licandro, A. Abbotto. - In: DYES AND PIGMENTS. - ISSN 0143-7208. - 161(2019 Feb), pp. 382-388.
An unconventional helical push-pull system for solar cells
D. DovaPrimo
;S. CauteruccioSecondo
;N. Manfredi;S. Arnaboldi;P.R. Mussini;E. LicandroPenultimo
;
2019
Abstract
The synthesis, photophysical and electrochemical characterization, theoretical calculations and photovoltaic studies of a push-pull dye with an unconventional nonplanar tetrathiahelicene π−spacer between the donoracceptor 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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