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- W2016009126 abstract "In this study, we investigate Cu 2 O film electrically connected with TiO 2 film, as a p-n type heterojunction, for enhancing the photoelectrocatalytic (PEC) activity towards degradation of methyl orange (MO) solution under ultraviolet irradiation. By using a versatile magnetron sputtering technique, the Cu 2 O films were deposited onto three different substrates, i.e., ITO, Ni/Cr and Pt, denoted as Cu 2 O/It, Cu 2 O/Ni and Cu 2 O/Pt, respectively, whereas the TiO 2 film was deposited on ITO substrate. All three Cu 2 O films show about the same characteristics of preferential (111) plane of the Cu 2 O oxide. While electrically coupled with TiO 2 , the Cu 2 O/Pt exhibits the highest PEC activity on MO degradation among four different couples. Thus, the increase in PEC activity of the Cu 2 O/Pt-TiO 2 is due to both the electron affinity of the Pt substrate and the effect of the equilibration of Fermi level of which is more compatible for Cu 2 O and TiO 2 oxides, decreasing the electrochemical capacitances of the p-n heterojunction. The electric-assisted heterojunction offers an efficient way for photogenerated electron transport from TiO 2 to holes in the Cu 2 O, rendering enhanced PEC activity." @default.
- W2016009126 created "2016-06-24" @default.
- W2016009126 creator A5003188376 @default.
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- W2016009126 date "2013-09-01" @default.
- W2016009126 modified "2023-09-27" @default.
- W2016009126 title "Photoelectrocatalytic Activity of Cu<sub>2</sub>O Films Prepared on Different Substrates in Connection with TiO<sub>2</sub> Electrodes" @default.
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- W2016009126 doi "https://doi.org/10.4028/www.scientific.net/amr.774-776.987" @default.
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