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Preparation and Photovoltaic Properties Cu2O/TiO2 Nanorod Heterojunction Solar Cells

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p-Cu2O/n-TiO2 nanorod heterojunction solar cells consisting of n-type TiO2 nanorod arrays encapsulated in the p-type Cu2O thin films were demonstrated by using hydrothermal reaction and electrodeposition. The effects of precursor reactant concentration and the growth time depended length of TiO2 nanorods and thickness of Cu2O thin films on the optical and electrical properties of the heterojunction were studied in detail. Experimental results show that under the irradiation of AM1.5G simulated sunlight with an intensity of 100 mw/cm2, the optimized photoelectric conversion efficiency is 0.63% with the short-circuit current density of 2.43 mA/cm2, the open circuit voltage of 0.68 V, and the fill factor of 0.66, while the corresponding thickness of Cu2O film is 500 nm and the length of TiO2 nanorods is 800 nm.
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Keywords: CU2O THIN FILM; ELECTRICAL PROPERTIES; GROWTH TIME; HETEROJUNCTION; REACTANT CONCENTRATION; TIO2NANORODS

Document Type: Research Article

Publication date: November 1, 2013

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  • Science of Advanced Materials (SAM) is an interdisciplinary peer-reviewed journal consolidating research activities in all aspects of advanced materials in the fields of science, engineering and medicine into a single and unique reference source. SAM provides the means for materials scientists, chemists, physicists, biologists, engineers, ceramicists, metallurgists, theoreticians and technocrats to publish original research articles as reviews with author's photo and short biography, full research articles and communications of important new scientific and technological findings, encompassing the fundamental and applied research in all latest aspects of advanced materials.
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