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Updated: Apr 21, 2026
Integrating a Triplet-triplet Annihilation Up-conversion System to Enhance Dye-sensitized Solar Cell Response to Sub-bandgap Light
Published on: September 12, 2014
A double-acceptor as a superior organic dye design for p-type DSSCs: high photocurrents and the observed light
Kevin A Click1, Damian R Beauchamp, Benjamin R Garrett
1Department of Chemistry and Biochemistry, The Ohio State University, 100 West 18th Avenue Columbus, Ohio 43210, USA. wu@chemistry.ohio-state.edu.
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.
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