Effect of Surface Electron Trapping and Small Polaron Formation on the Photocatalytic Efficiency of Copper(I) and Copper(II) Oxides
Savini Bandaranayake,
Ananya Patnaik,
Emily Hruska
et al.
Abstract:Cu 2 O, CuO, and mixed phase Cu 2 O/CuO represent promising candidates for photoelectrochemical H 2 evolution due to their strong visible light absorption, earth-abundance, and chemical stability. However, the photoelectrochemical efficiency in these materials remains far below the theoretical limit, largely due to poorly understood surface electron dynamics. These dynamics depend on defect states, such as Cu atom vacancies and phase boundaries, which control electron trapping, charge carrier separation, and r… Show more
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