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Journal of Science and Technology – Engineering and Technology for Sustainable Development (In press)
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Research article
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Vu, T. S., Nguyen, T. N., Luong, H. P., Dang, D. V., & Vu, X. H. (2025). Photoresponse Characteristics of Nano‐V₂O₅ Material Directly Synthesized from Vanadium Powder via Microwave. Engineering and Technology For Sustainable Development. https://jst.vn/index.php/etsd/article/view/1187

Photoresponse Characteristics of Nano‐V₂O₅ Material Directly Synthesized from Vanadium Powder via Microwave

Tuan Sai Vu1, Thanh Nghi Nguyen1, Huu Phuoc Luong1, Duc Vuong Dang1, Xuan Hien Vu1,
1 School of Engineering Physics, Hanoi University of Science and Technology, Ha Noi, Vietnam

Main Article Content

Abstract

Vanadium pentoxide (V₂O₅) was rapidly synthesized from vanadium metal powder using a microwave-assisted method, completing the entire process in less than one hour. The resulting material exhibited a wrinkled nanosheet morphology. The synthesized V₂O₅ showed enhanced photoresponsivity, with the photocurrent increasing by approximately 1.8 times under       470 nm illumination. In addition, the material exhibited excellent ambient stability, with negligible signal degradation after   30 days. Structural and optical properties were systematically characterized by X-ray diffraction (XRD), Raman spectroscopy, and UV–Vis spectroscopy, revealing clear correlations between synthesis conditions, crystal structure, and optical behavior. These findings highlight microwave-assisted synthesis as a fast and efficient strategy for fabricating V₂O₅-based materials for photodetectors and other optoelectronic applications.

Keywords

Nanostructured materials, microwave-assisted synthesis, optical properties, photodetectors, vanadium oxides.

Article Details

References

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