Molecular Level Factors Affecting the Efficiency of Organic Chromophores for p-Type Dye Sensitized Solar Cells
AbstractA series of mono- and di-branched donor-π-acceptor charge-separated dyes incorporating triphenylamine as a donor and either Dalton’s or benzothiadiazole group as strong acceptors was synthesized and its fundamental properties relevant to the sensitization of nanocrystalline NiO investigated. The dyes exhibited an intense visible absorption band with a strong charge transfer character favorable to NiO sensitization, shifting the electron density from the donor to the acceptor branches. Nevertheless, the computed exciton binding energy is circa twice that of a common literature standard (P1), suggesting a more difficult charge separation. When tested in p-type dye-sensitized solar cells the dyes successfully sensitized NiO electrodes, with photocurrent densities about half than that of the reference compound. Being recombination kinetics comparable, the larger photocurrent generated by P1 agrees with the superior charge separation capability originating by its smaller exciton binding energy. View Full-Text
- Supplementary File 1:
Supplementary (PDF, 1663 KB)
Scifeed alert for new publicationsNever miss any articles matching your research from any publisher
- Get alerts for new papers matching your research
- Find out the new papers from selected authors
- Updated daily for 49'000+ journals and 6000+ publishers
- Define your Scifeed now
Karamshuk, S.; Caramori, S.; Manfredi, N.; Salamone, M.; Ruffo, R.; Carli, S.; Bignozzi, C.A.; Abbotto, A. Molecular Level Factors Affecting the Efficiency of Organic Chromophores for p-Type Dye Sensitized Solar Cells. Energies 2016, 9, 33.
Karamshuk S, Caramori S, Manfredi N, Salamone M, Ruffo R, Carli S, Bignozzi CA, Abbotto A. Molecular Level Factors Affecting the Efficiency of Organic Chromophores for p-Type Dye Sensitized Solar Cells. Energies. 2016; 9(1):33.Chicago/Turabian Style
Karamshuk, Svitlana; Caramori, Stefano; Manfredi, Norberto; Salamone, Matteo; Ruffo, Riccardo; Carli, Stefano; Bignozzi, Carlo A.; Abbotto, Alessandro. 2016. "Molecular Level Factors Affecting the Efficiency of Organic Chromophores for p-Type Dye Sensitized Solar Cells." Energies 9, no. 1: 33.
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.