Observation of V–V dimers softening and distinct length scales in nanostructured VO2 thin films

Ojha, Pranav; Sharma, Ravi; Hissariya, Raman; Babu, S. Moorthy; Ketkar, E.; Singh, Sudesh; Neema, S.; Rana, Abhimanyu; Pal, Nila; Sathe, Vasant; Mishra, Shrawan

doi:10.1016/j.jpcs.2021.110564

Cited by 4 publications

(1 citation statement)

References 54 publications

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“…Vanadium dioxide has received much attention due to its unique metal-insulator transition (MIT) accompanied by a structural change (SPT).The most notable feature of MIT is the rapid change in conductivity and the resulting change in physical properties such as optical absorption and dielectric constant [7,8] .VO 2 can be modulated in a variety of ways including warming/cooling, reactions, pressurization, physicochemical doping, optical or electrostatic fields, etc., to modulate its phase change [9,10,11] . Based on the phase change properties of VO 2 , it allows its application to terahertz filters to achieve the modulated performance.…”

Section: Introductionmentioning

confidence: 99%

Design of vanadium dioxide-based terahertz tunable filters

Sun

Wang

2023

International Conference on Optoelectronic Information and Functional Materials (OIFM 2023)

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In this paper, a terahertz tunable filter based on vanadium dioxide with a H-type structure is designed. The dielectric layer of the filter is quartz glass and the metal layer is composed of aluminum and vanadium dioxide. Using the phase transition characteristic of VO2, the single band and double band of filter can be switched. When VO2 is the insulating phase, the filter is in single-pass state with a transmission rate of 0.97 and a -3dB bandwidth of 1.71THz; when VO2 is the metallic phase, the filter is in double-pass state, the transmission rate of both passbands reaches above 0.8, and the -3dB bandwidth at the center frequency is 0.89THz and 1.17THz respectively.

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Section: Introductionmentioning

confidence: 99%

Design of vanadium dioxide-based terahertz tunable filters

Sun

Wang

2023

International Conference on Optoelectronic Information and Functional Materials (OIFM 2023)

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Dynamics of phonons, charge-regulated itinerant VO2 states, and their impacts on the memristor properties of thin VO2 films

Ojha,

Sharma,

Sathe

et al. 2024

Surfaces and Interfaces

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Metastable marvels: Navigating VO2 polymorphs for next-gen electronics and energy solutions

Vishwakarma,

Remadevi,

Kumar

et al. 2024

Journal of Applied Physics

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VO2 polymorphs present a unique opportunity to unravel diverse electronic properties possessed by their metastable phases. A highly reproducible, single-phase, and inexpensive synthesis method is challenging for obtaining VO2 polymorphs. Recent years have witnessed some exciting success in the growth and application of a wide range of VO2 polymorphs. This comprehensive review article delves into different polymorphs, including VO2(x) (x = A, B, M, R, C, P, and D), and investigates their distinct physical attributes. The primary focus of this article centers on providing a thorough overview of the recent progress made in stabilizing VO2(A) and VO2(B) polymorphs, emphasizing the significance of the coexistence of nanodomains at the film–substrate interface in stabilizing specific metastable phases. Additionally, the review article delves into advancements in understanding the phase transition mechanism, adjusting the order parameter in resistivity, and modifying the metal–insulator transition (MIT) temperature through doping. It also summarizes the structural, optical, electronic, and interface properties of these polymorphs and highlights their potential applications in next-generation electronic devices, particularly in the fields of sensing and energy storage.

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Observation of V–V dimers softening and distinct length scales in nanostructured VO2 thin films

Cited by 4 publications

References 54 publications

Design of vanadium dioxide-based terahertz tunable filters

Design of vanadium dioxide-based terahertz tunable filters

Dynamics of phonons, charge-regulated itinerant VO2 states, and their impacts on the memristor properties of thin VO2 films

Metastable marvels: Navigating VO2 polymorphs for next-gen electronics and energy solutions

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