CuO和Cu2O纳米结构:实现高效暗电流密度的途径

IF 1.2 4区 地球科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY
Leila Amiour, Youcef Aouabdia, Nadjah Sobti
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引用次数: 0

摘要

本研究采用简单的溶液法和热退火法制备CuO和Cu2O纳米结构。在180℃下得到纯CuO,而在更高温度下得到Cu2O/CuO异质结构。纯CuO薄膜光电流密度最高(140.05 mA/cm2),暗电流密度显著(60.27 mA/cm2)。虽然异质结构表现出较低的光电流,但在不同的退火温度下,它们也表现出显著的暗电流(9.03-16.27 mA/cm2)。这些发现为开发具有优异光催化能力和暗电流产生潜力的有效的cuo基光电极提供了一种有希望的方法。图形抽象
本文章由计算机程序翻译,如有差异,请以英文原文为准。

CuO and Cu2O nanostructures: pathway to efficient dark current density

CuO and Cu2O nanostructures: pathway to efficient dark current density

This study investigates the fabrication of CuO and Cu2O nanostructures by a simple solution-based method followed by thermal annealing. Pure CuO was obtained at 180 °C, while higher temperatures yielded Cu2O/CuO heterostructures. The pure CuO film exhibited the highest photocurrent density (140.05 mA/cm2) and a notable dark current density (60.27 mA/cm2). Although the heterostructures showed lower photocurrents, they also demonstrated significant dark currents (9.03–16.27 mA/cm2) across different annealing temperatures. These findings suggest a promising approach for developing effective CuO-based photoelectrodes with both excellent photocatalytic capabilities and a potential for dark current generation.

Graphical abstract

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来源期刊
Physics and Chemistry of Minerals
Physics and Chemistry of Minerals 地学-材料科学:综合
CiteScore
2.90
自引率
14.30%
发文量
43
审稿时长
3 months
期刊介绍: Physics and Chemistry of Minerals is an international journal devoted to publishing articles and short communications of physical or chemical studies on minerals or solids related to minerals. The aim of the journal is to support competent interdisciplinary work in mineralogy and physics or chemistry. Particular emphasis is placed on applications of modern techniques or new theories and models to interpret atomic structures and physical or chemical properties of minerals. Some subjects of interest are: -Relationships between atomic structure and crystalline state (structures of various states, crystal energies, crystal growth, thermodynamic studies, phase transformations, solid solution, exsolution phenomena, etc.) -General solid state spectroscopy (ultraviolet, visible, infrared, Raman, ESCA, luminescence, X-ray, electron paramagnetic resonance, nuclear magnetic resonance, gamma ray resonance, etc.) -Experimental and theoretical analysis of chemical bonding in minerals (application of crystal field, molecular orbital, band theories, etc.) -Physical properties (magnetic, mechanical, electric, optical, thermodynamic, etc.) -Relations between thermal expansion, compressibility, elastic constants, and fundamental properties of atomic structure, particularly as applied to geophysical problems -Electron microscopy in support of physical and chemical studies -Computational methods in the study of the structure and properties of minerals -Mineral surfaces (experimental methods, structure and properties)
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