The Dye Sensitized Photoelectrosynthesis Cell (DSPEC) for Solar Water Splitting and CO2 Reduction

ORAL

Abstract

The dye-sensitized photoelectrosynthesis cell (DSPEC) integrates molecular level light absorption and catalysis with the bandgap properties of stable oxide materials such as TiO2 and NiO. Excitation of surface-bound chromophores leads to excited state formation and rapid electron or hole injection into the conduction or valence bands of n or p-type oxides. Addition of thin layers of TiO2 or NiO on the surfaces of mesoscopic, nanoparticle films of semiconductor or transparent conducting oxides to give core/shell structures provides a basis for accumulating multiple redox equivalents at catalysts for water oxidation or CO2 reduction.

*UNC EFRC Center for Solar Fuels, an Energy Frontier Research Center funded by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences under Award Number DE-SC0001011

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Authors

  • Thomas Meyer

    • University of North Carolina at Chapel Hill

  • Leila Alibabaei

    • University of North Carolina at Chapel Hill

  • Benjamin Sherman

    • University of North Carolina at Chapel Hill

  • Matthew Sheridan

    • University of North Carolina at Chapel Hill

  • Dennis Ashford

    • Eastman Chemical

  • Alex Lapides

    • University of North Carolina at Chapel Hill

  • Kyle Brennaman

    • University of North Carolina at Chapel Hill

  • Animesh Nayak

    • University of North Carolina at Chapel Hill

  • Subhangi Roy

    • University of North Carolina at Chapel Hill

  • Kyung-Ryang Wee

    • University of North Carolina at Chapel Hill

  • Melissa Gish

    • University of North Carolina at Chapel Hill

  • Jerry Meyer

    • University of North Carolina at Chapel Hill

  • John Papanikolas

    • University of North Carolina at Chapel Hill