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This study explores the intriguing properties and phase transitions of vanadium dioxide (VO2), a material that exhibits a remarkable metal–insulator transition (MIT). The focus is on understanding the underlying mechanisms of MIT in VO2, including Mott and Peierls transitions, which are driven by electron-electron and electron–lattice interactions, respectively. The study looks at the effects of doping on VO2, highlighting how dopants such as molybdenum, tungsten, and titanium significantly influence its thermal, optical, and electrical properties. These modifications are crucial for practical applications as they enable the transition temperature of VO2 to be adjusted to meet specific requirements. The study also covers various methods of activating MIT in VO2, such as thermal, optical, electrical, electrochemical, and mechanical activations, elucidating how different stimuli induce the phase transition. Each activation method offers unique insights into the material’s properties and potential applications in smart devices and industrial applications. Overall, this chapter provides a comprehensive overview of the current understanding of VO2 phase transition mechanisms, the impact of doping and MIT’s various activation methods. It highlights the versatility of the material and its potential for a wide range of technological and industrial applications.

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A Review of the Dynamics of Metal–Insulator Transitions of Vanadium Dioxide

  • 章节

  • 发表日期：

    2025年

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  • Mohammed Zouini,
  • Abderrahim Ben Chaib,
  • Yassine Anigrou,
  • Fatima Zahra Benbrahim,
  • El Mehdi El Khattabi

摘要

This study explores the intriguing properties and phase transitions of vanadium dioxide (VO2), a material that exhibits a remarkable metal–insulator transition (MIT). The focus is on understanding the underlying mechanisms of MIT in VO2, including Mott and Peierls transitions, which are driven by electron-electron and electron–lattice interactions, respectively. The study looks at the effects of doping on VO2, highlighting how dopants such as molybdenum, tungsten, and titanium significantly influence its thermal, optical, and electrical properties. These modifications are crucial for practical applications as they enable the transition temperature of VO2 to be adjusted to meet specific requirements. The study also covers various methods of activating MIT in VO2, such as thermal, optical, electrical, electrochemical, and mechanical activations, elucidating how different stimuli induce the phase transition. Each activation method offers unique insights into the material’s properties and potential applications in smart devices and industrial applications. Overall, this chapter provides a comprehensive overview of the current understanding of VO2 phase transition mechanisms, the impact of doping and MIT’s various activation methods. It highlights the versatility of the material and its potential for a wide range of technological and industrial applications.