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Issue 47, 2014
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A double-acceptor as a superior organic dye design for p-type DSSCs: high photocurrents and the observed light soaking effect

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Abstract

Herein, we report three novel single donor double acceptor dyes, BH2, 4, and 6, for use in p-type dye sensitized solar cells (DSSCs). BH4 yields one of the highest photocurrents, 7.4 mA cm−2, to date. The high performance is achieved via a shorter synthetic route and no exotic materials or cell-building techniques. We suggest a structural principle when building dyes whereby one adopts a double acceptor/single anchor when a triphenylamine moiety is incorporated into a dye for p-type DSSCs. This strategy increases the molar extinction coefficient while simultaneously reducing the number of synthetic steps. The molar extinction coefficients (99 980 M−1 cm−1) reported herein are among the highest reported. Finally, we report the first-ever-observed light soaking effect in p-type DSSCs.

Graphical abstract: A double-acceptor as a superior organic dye design for p-type DSSCs: high photocurrents and the observed light soaking effect

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Supplementary files

Article information


Submitted
06 Sep 2014
Accepted
21 Oct 2014
First published
21 Oct 2014

Phys. Chem. Chem. Phys., 2014,16, 26103-26111
Article type
Paper
Author version available

A double-acceptor as a superior organic dye design for p-type DSSCs: high photocurrents and the observed light soaking effect

K. A. Click, D. R. Beauchamp, B. R. Garrett, Z. Huang, C. M. Hadad and Y. Wu, Phys. Chem. Chem. Phys., 2014, 16, 26103 DOI: 10.1039/C4CP04010D

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