Publication: Additional donor bridge as a design approach for multi-anchoring dyes for highly efficient dye-sensitized solar cells
Issued Date
2018-02-01
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ISSN
10106030
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2-s2.0-85032834669
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Mahidol University
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SCOPUS
Bibliographic Citation
Journal of Photochemistry and Photobiology A: Chemistry. Vol.352, (2018), 86-97
Suggested Citation
Utt Eiamprasert, Jutarat Sudchanham, Panida Surawatanawong, Pasit Pakawatpanurut, Supavadee Kiatisevi Additional donor bridge as a design approach for multi-anchoring dyes for highly efficient dye-sensitized solar cells. Journal of Photochemistry and Photobiology A: Chemistry. Vol.352, (2018), 86-97. doi:10.1016/j.jphotochem.2017.10.033 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/45438
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Title
Additional donor bridge as a design approach for multi-anchoring dyes for highly efficient dye-sensitized solar cells
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Abstract
© 2017 Elsevier B.V. This work presents an approach for designing efficient multi-anchoring dyes for dye-sensitized solar cells by using additional donor as a bridging group between donor–acceptor (D–A) side arms. With triarylamine as the additional donor and phenothiazine-cyanoacrylic acid as the D–A side arm, the multi-anchoring dyes exhibited higher molar extinction coefficients in the intramolecular charge transfer bands, less dye aggregation on the TiO2 surface, and better DSSC performance than that of the mono-anchoring reference dye. The best cell efficiency of 7.06% was obtained from the di-anchoring dye with two additional donor units T2P2 showing the largest charge recombination resistance of 99.7 Ω, open circuit voltage of 0.83 V, and short-circuit photocurrent density of 12.72 mA cm−2. The improvement in performance of the designed dyes suggests that additional donor is a potential bridging group for efficient multi-anchoring sensitizers.