Vanadium oxides (VOₓ) represent a diverse family of transition metal oxides with rich structural and electronic properties, making them promising candidates for a wide range of applications in sustainable technologies. Their ability to exhibit multiple oxidation states and reversible redox behavior enables their use in electrochemical systems such as supercapacitors, lithium-ion batteries, and electrochromic devices. Simultaneously, VOₓ compounds possess tunable optical and semiconductor properties that make them attractive for photochemical applications, including photocatalytic degradation of pollutants and solar-driven water splitting. This mini review explores the multifunctional nature of VOₓ materials, with a focus on their integration into thin films and nanostructures that enhance performance and enable scalable use. Emphasis is placed on recent advances in deposition techniques, structure–property relationships, and the dual electrochemical and photochemical potential of VOₓ-based systems. By showcasing their adaptability and relevance to clean energy and environmental technologies, this review positions vanadium oxides as key materials for future innovation in green and smart devices.
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