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

ABSTRACT: Coplanar metal-free organic dyes featuring a furylethynyl spacer with different donor residues (MeO-, MeS-, and Me?N-) have been synthesized. Density functional theory (DFT) calculations predicted that the Me?N- 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 Me?N- functionalized dye exhibited the best power conversion efficiency (?), 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.

SUBMITTER: Serrano LA

PROVIDER: S-EPMC6427565 | biostudies-literature | 2019 Mar

REPOSITORIES: biostudies-literature

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

Serrano Luis A LA Park Kwang-Won KW Ahn Sungwoo S Wiles Alan A AA Hong Jongin J Cooke Graeme G

Materials (Basel, Switzerland) 20190312 5

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 ...[more]

PMID: 30871091

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