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Updated: Feb 14, 2026

Electrospinning of Photocatalytic Electrodes for Dye-sensitized Solar Cells
Published on: June 28, 2017
Ullazine Donor-π bridge-Acceptor Organic Dyes for Dye-Sensitized Solar Cells
Yanbing Zhang1, Hammad Cheema1, Louis McNamara1
1Department of Chemistry and Biochemistry, University of Mississippi, University, MS, 38677, USA.
Abstract:
A series of four ullazine-donor based donor-π bridge-acceptor (D-π-A) dyes have been synthesized and compared to a prior ullazine donor-acceptor (D-A) dye as well as a triphenylamine donor with an identical π-bridge and acceptor. The D-π-A ullazine series demonstrates an unusually uniform-in-intensity panchromatic UV/Vis absorption spectrum throughout the visible region. This is in part due to the introduction of strong high-energy bands through incorporation of the ullazine building block as shown by computational analysis. The dyes were characterized on TiO2 films and in DSC devices. Performances of 5.6 % power conversion efficiency were obtained with IPCE onsets reaching 800 nm.
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