首页|Wavelength dependent photoinduced charge carrier dynamics of heterojunction materials: The case of CuO/ZnO
Wavelength dependent photoinduced charge carrier dynamics of heterojunction materials: The case of CuO/ZnO
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NSTL
Elsevier
? 2022 Elsevier B.V.Heterojunction materials composed of narrow and wide band-gap semiconductors possess different photoelectric responses under different wavelength incident light, and show distinct photogenerated charge carrier dynamics. In this work, taking the hydrothermal method fabricated CuO nanosheets / ZnO nanorods heterojunction materials as example, the wavelength dependent photoinduced charge carrier dynamics in this heterojunction material have been carefully studied. Transient surface photovoltage (TSPV) measurements reveal that the photogenerated holes gather at the surface of the fabricated CuO / ZnO with 355 nm light illumination, but photogenerated electrons gather at the surface under 532 nm light. Photocatalytic degradation experiments suggest that CuO / ZnO heterojunction material has better performance under ultraviolet light than that under visible light.
Band structureCuO / ZnOHeterojunctionPhotocatalysisPhotoinduced charge carrier dynamicWavelength dependent
Yang X.、Gu L.、Hou X.、Lei Y.、Gou S.、He W.、Zheng Z.
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Institute of Materials Science and Devices Suzhou University of Science and Technology
Key Laboratory of Micro-Nano Materials for Energy Storage and Conversion of Henan Province Institute of Surface Micro and Nano Materials College of Chemical and Materials Engineering Xuchang University
NSTL
Elsevier
