Copper(I) Donor-Chromophore-Acceptor Assembly for Light-Driven Oxidation on a Zinc Oxide Nanowire Electrode

23 June 2022, Version 1
This content is a preprint and has not undergone peer review at the time of posting.

Abstract

Dye-sensitized photoelectrochemical cells have emerged as a potential candidate for solar-to-fuels conversion. Herein, we report a Cu(I)-based donor-chromophore-acceptor triad comprising a triphenylamine electron donor and dipyrido[3,2-a:2',3'-c]phenazine electron acceptor as the active material for photoanodes. Energy levels of this triad are carefully aligned for thermodynamically favorable photoinduced electron transfer. Once this triad is surface grafted onto zinc oxide nanowires, photoelectrochemical studies confirm the utility of this architecture for oxidative processes such as alcohol oxidation with modest yields.

Supplementary materials

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Supporting Information
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Procedures for the synthesis of ligands, synthesis of complexes, synthesis of ZnO nanoparticles, device fabrication, device characterization, supporting photoelectrochemical studies, supporting DFT studies and NMR analysis.
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