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Materials 2019, 12(5), 839; https://doi.org/10.3390/ma12050839

Coplanar Donor-π-Acceptor Dyes Featuring a Furylethynyl Spacer for Dye-Sensitized Solar Cells

1
WestCHEM, School of Chemistry, University of Glasgow, Glasgow G12 8QQ, UK
2
Department of Chemistry, Chung-Ang University, Seoul 06974, Korea
*
Authors to whom correspondence should be addressed.
Equal contribution to this work.
Received: 14 February 2019 / Revised: 2 March 2019 / Accepted: 4 March 2019 / Published: 12 March 2019
(This article belongs to the Special Issue Materials for Photovoltaic Applications)
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Abstract

Coplanar metal-free organic dyes featuring a furylethynyl spacer with different donor residues (MeO-, MeS-, and Me2N-) have been synthesized. Density functional theory (DFT) calculations predicted that the Me2N- residue would facilitate more effective charge transfer from donor to acceptor than the MeO- and MeS- residues. In agreement with DFT calculations, the dye-sensitized solar cells (DSSCs) fabricated with the Me2N- functionalized dye exhibited the best power conversion efficiency (η), 2.88%. Furthermore, the effect of the furan spacer on the photophysical properties and DSSC parameters are discussed in comparison to a previously reported thiophene counterpart. View Full-Text
Keywords: dye-sensitized solar cell; donor-π-acceptor; furyethynyl; density functional theory dye-sensitized solar cell; donor-π-acceptor; furyethynyl; density functional theory
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Serrano, L.A.; Park, K.-W.; Ahn, S.; Wiles, A.A.; Hong, J.; Cooke, G. Coplanar Donor-π-Acceptor Dyes Featuring a Furylethynyl Spacer for Dye-Sensitized Solar Cells. Materials 2019, 12, 839.

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