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Fabrication of TiO <sub>2</sub> /CuO photoelectrode with enhanced solar water splitting activity
Atabaev, Timur Sh.,Lee, Dae Hun,Hong, Nguyen Hoa World Scientific Pub. Co. Pte. Ltd 2017 Functional Materials Letters Vol.10 No.6
<P>A bilayered TiO<SUB>2</SUB>/CuO photoelectrode was fabricated on a fluorine-doped tin oxide FTO substrate by spin-coating and pulsed laser deposition methods. The prepared bilayered system was assessed as a photoelectrode for solar water splitting. The fabricated TiO<SUB>2</SUB>/CuO photoelectrode exhibited a higher photocurrent density (0.022<TEX>$ \,$</TEX>mA/cm<SUP>2</SUP> at 1.23<TEX>$ \,$</TEX>V vs. RHE) compared to bare TiO<SUB>2</SUB> photoelectrode (0.013<TEX>$ \,$</TEX>mA/cm<SUP>2</SUP> at 1.23<TEX>$ \,$</TEX>V vs. RHE). This photocurrent density enhancement was attributed to the improved charge separation combined with the improved sunlight harvesting efficiency of a bilayered structure.</P>