Synthesis of Cu2O/ZnO fiber heterojunction networks for self-powered visible-light photodetectors with rapid response

IF 2.4 4区物理与天体物理 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Current Applied Physics Pub Date : 2025-03-04 DOI:10.1016/j.cap.2025.03.002

Yiran Wang , Senzhuo Xing , Nan Zhang

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引用次数: 0

Abstract

The network-based self-powered photodetector features a large interfacial area, enhancing light absorption and charge carrier generation, along with its mechanical robustness, enabling integration into various applications. In this study, we propose a novel self-powered photodetector based on an AZO/ZnO/Cu₂O/Ag network architecture, fabricated using electrodeposition and atomic layer deposition techniques. The fabricated photodetector exhibits a detection wavelength range extending from 390 nm to 780 nm at zero bias, covering the visible spectrum. With a maximum responsivity of 1.6 mA/W and a response time of 5 μs, the device showcases excellent sensitivity and rapid detection capabilities. X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), X-ray diffraction (XRD), and optoelectronic performance testing were employed to analyze the operating mechanism of the photodetector. It was found that the spatial charge region formed at the interface between Cu₂O and ZnO layers plays a crucial role in enabling the self-powered operation of the photodetector. Our work provides a new strategy for the development of high-performance network photodetectors.

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来源期刊

Current Applied Physics 物理-材料科学：综合

CiteScore

4.80

自引率

0.00%

发文量

213

审稿时长

33 days

期刊介绍： Current Applied Physics (Curr. Appl. Phys.) is a monthly published international journal covering all the fields of applied science investigating the physics of the advanced materials for future applications. Other areas covered: Experimental and theoretical aspects of advanced materials and devices dealing with synthesis or structural chemistry, physical and electronic properties, photonics, engineering applications, and uniquely pertinent measurement or analytical techniques. Current Applied Physics, published since 2001, covers physics, chemistry and materials science, including bio-materials, with their engineering aspects. It is a truly interdisciplinary journal opening a forum for scientists of all related fields, a unique point of the journal discriminating it from other worldwide and/or Pacific Rim applied physics journals. Regular research papers, letters and review articles with contents meeting the scope of the journal will be considered for publication after peer review. The Journal is owned by the Korean Physical Society.