BROWSE

Related Researcher

Author

Park, Su-Moon
Electrochemistry Lab
Research Interests
  • Electrochemistry and spectroscopy of conducting polymers

ITEM VIEW & DOWNLOAD

Bistriphenylamine-based organic sensitizers with high molar extinction coefficients for dye-sensitized solar cells

Cited 5 times inthomson ciCited 4 times inthomson ci
Title
Bistriphenylamine-based organic sensitizers with high molar extinction coefficients for dye-sensitized solar cells
Author
Chang, Dong WookTsao, Hoi NokSalvatori, PaoloDe Angelis, FilippoGraetzel, MichaelPark, Su-MoonDai, LimingLee, Hyo JoongBaek, Jong-BeomNazeeruddin, Mohammad K.
Keywords
Dye-Sensitized solar cell; Dye-sensitized solar cells; Electronic and geometrical structure; Fill factor; Low energy regions; Measurement conditions; Molar extinction coefficient; Power conversion efficiencies; Theoretical investigations; Visible spectra
Issue Date
201208
Publisher
ROYAL SOC CHEMISTRY
Citation
RSC ADVANCES, v.2, no.15, pp.6209 - 6215
Abstract
A series of novel bistriphenylamine-based organic sensitizers (coded as RC-dyes) with high molar extinction coefficients (>5.0 x 10(4) M-1 cm(-1)) have been synthesized for dye-sensitized solar cells (DSSCs). By changing the length of the pi-conjugation bridge thiophene from zero to two between the donor and the acceptor part, the range of absorption and its corresponding photon-to-current conversion was modulated gradually to the low energy region in the visible spectrum. Based on the electrochemical and theoretical investigations on the electronic and geometrical structure, RC dyes were shown to be a promising candidate for efficient metal-free organic sensitizers with strong light absorption. Among RC dyes (11 similar to 13) tested, the highest power conversion efficiency of 5.67% was obtained from RC-13 with a short circuit current of 10.78 mA cm(-2), an open circuit voltage of 0.71 V, and a fill factor of 0.74 under standard AM 1.5 measurement conditions.
URI
Go to Link
DOI
http://dx.doi.org/10.1039/c2ra20798b
ISSN
2046-2069
Appears in Collections:
ECHE_Journal Papers
SNS_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU