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Cited by 461

The DOI matches its Crossref record; 35 of the 35 references it cites were found in a registry or an index.

Starburst Triarylamine Based Dyes for Efficient Dye-Sensitized Solar Cells

Ning, Zhijun, Zhang, Qiong, Wu, Wenjun, Pei, Hongcui, Liu, Bo, Tian, He·2008·The Journal of Organic Chemistry

Abstract

We report here on the synthesis and photophysical/electrochemical properties of a series of novel starburst triarylamine-based organic dyes (S1, S2, S3, and S4) as well as their application in dye-sensitized nanocrystalline TiO2 solar cells (DSSCs). For the four designed dyes, the starburst triarylamine group and the cyanoacetic acid take the role of electron donor and electron acceptor, respectively. It was found that the introduction of starburst triarylamine group to form the D-D-pi-A configuration brought about superior performance over the simple D-pi-A configuration, in terms of bathochromically extended absorption spectra, enhanced molar extinction coefficients and better thermo-stability. Moreover, the HOMO and LUMO energy levels tuning can be conveniently accomplished by alternating the donor moiety, which was confirmed by electrochemical measurements and theoretical calculations. The DSSCs based on the dye S4 showed the best photovoltaic performance: a maximum monochromatic incident photon-to-current conversion efficiency (IPCE) of 85%, a short-circuit photocurrent density (J(sc)) of 13.8 mA cm(-2), an open-circuit photovoltage (V(oc)) of 0.63 V, and a fill factor (ff) of 0.69, corresponding to an overall conversion efficiency of 6.02% under 100 mW cm(-2) irradiation. This work suggests that the dyes based on starburst triphenylamine donor are promising candidates for improvement of the performance of the DSSCs.

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Metadata

Authors
Ning, Z., Zhang, Q., Wu, W., Pei, H., Liu, B., & Tian, H.
Venue
The Journal of Organic Chemistry
Published
2008-04-15
Volume
73
Issue
10
Pages
3791-3797
ISSN
  • 0022-3263 (ISSN-L)
  • 1520-6904
OpenAlex
W2064937078
Cited by
461
References
35
FWCI
21.13
Type
journal article
Language
en
Open access
closed

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