Self-assembled single crystal VO2 (A) microbelts by the reduction of V2O5 thin films: synthesis, structure and optical properties

Zhang, Chunzi; Koughia, Cyril; Zhu, Jianfeng; Güneş, Ozan; Wen, Shi-Jie; Yang, Q.; Kasap, S. O.

doi:10.1016/j.jallcom.2021.158728

Cited by 10 publications

(8 citation statements)

References 41 publications

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“…The first group was the experiments using focused light which were conducted using a custom-built setup sketched shown in Figure 1d and first reported in our article. [38] The sample deposited on the Si substrate was positioned on a thermocontroller-controlled computer with a precision of AE0.3 C. The light emitted by a low-power LED was modulated by mechanical chopper and focused onto a spot on a surface of the sample by means of a microscope objective. Three different LEDs were used depending on the object of investigation.…”

Section: Methodsmentioning

confidence: 99%

“…The TEM and SEM images are partial extractions from duplicate originals as reported in our previous articles. [37,38] In all experiments, there was neither intentional light polarization nor polarization control.…”

Section: Methodsmentioning

confidence: 99%

“…The TEM and SEM images are partial extractions from duplicate originals as reported in our previous articles. [ 37,38 ]…”

Section: Methodsmentioning

confidence: 99%

“…e) Three dimensions of the MR as used in the present article: the width (W ), the height (H), and the length (L).H is orthogonal to the Si substrate. The TEM and SEM images are partial extractions from duplicate originals as reported in our previous articles [37,38].…”

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confidence: 99%

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Size‐Dependent Insulator‐to‐Metal and Metal‐to‐Insulator Phase Transitions in VO₂ Microrods Grown on a Silicon Substrate

Koughia

Güneş

Zhang

et al. 2021

Physica Status Solidi (a)

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Light scattering from VO 2 microrods (MRs) synthesized on a silicon substrate is studied as a function of temperature and wavelength through the insulatorto-metal (IMT) and the metal-to-insulator (MIT) transitions. Light scattering exhibits substantial and reproducible changes. By focusing the light on individual MRs, it is shown that for small-sized MRs (<1 Â 10 μm), the IMT and MIT are very sharp with transition temperatures varying within 31-64 C (IMT) and within 58-76 C (MIT). In contrast, for large-sized MRs (%4 Â 40 μm), only the IMT at 68 C is sharp, whereas MIT is stretched with a prominent low-temperature shoulder at 35-50 C. The observed phenomena are assumed to be connected with the external substrate-induced mechanical stress emerging during the phase transition. A simple model is developed to explain both the temperature-stretched MIT and the low-temperature shoulder.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

“…The TEM and SEM images are partial extractions from duplicate originals as reported in our previous articles. [ 37,38 ]…”

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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Size‐Dependent Insulator‐to‐Metal and Metal‐to‐Insulator Phase Transitions in VO₂ Microrods Grown on a Silicon Substrate

Koughia

Güneş

Zhang

et al. 2021

Physica Status Solidi (a)

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“…VO 2 (A) undergoes a phase transition at T c ≈ 162 • C and is also attracting much attention for the application to the lithium-ion battery. 23,29,30 VO 2 (D) is a newly found metastable phase. It has been reported that structural phase change from VO 2 (D) to VO 2 (M) via VO 2 (R) is possible through post-annealing at low temperature.…”

Section: Introductionmentioning

confidence: 99%

Multistep synthesis of VO₂ (M) nanoparticles and their application to thermochromic hybrid films for IR modulation

Kwon

Hagiwara

Kim

et al. 2023

Int J Applied Ceramic Tech

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Vanadium dioxide (VO 2 ) is widely known as one of the excellent thermochromic materials based on a reversible insulator-to-metal phase transition upon temperature change. In this study, VO 2 (M) powder was initially synthesized through a hydrothermal method and a subsequent post-annealing treatment. Additionally, a particle size of the VO 2 (M) powder was reduced and uniformized by introducing a ball-milling process. The resultant VO 2 (M) nanoparticles (NPs) were dispersed in ethanol with the addition of polyvinylpyrrolidone (PVP). The ethanolic dispersion was then coated on a transparent heater used as a substrate by spin-coating to produce VO 2 (M)/PVP composite films. We have attained an exact temperature control of the films by applying voltages to the heater for the assessment of their thermochromic performance such as the solar and the infrared modulation ability. For example, the film temperature could be raised from room temperature to 85.5 • C within 180 s at a low voltage of 11 V, which was enough for inducing the phase transition of the VO 2 (M) NPs showing the infrared modulation ability of 19.3%. The combination of the composite films and the heater was thus proved to be a promising way for realizing transparent thermochromic devices.

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Improved electrochemical performances of LiNi0.5Co0.2Mn0.3O2 modified by Graphene/V2O5 co-coating

Dang

et al. 2021

Ceramics International

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Self-assembled single crystal VO2 (A) microbelts by the reduction of V2O5 thin films: synthesis, structure and optical properties

Cited by 10 publications

References 41 publications

Size‐Dependent Insulator‐to‐Metal and Metal‐to‐Insulator Phase Transitions in VO₂ Microrods Grown on a Silicon Substrate

Size‐Dependent Insulator‐to‐Metal and Metal‐to‐Insulator Phase Transitions in VO₂ Microrods Grown on a Silicon Substrate

Multistep synthesis of VO₂ (M) nanoparticles and their application to thermochromic hybrid films for IR modulation

Improved electrochemical performances of LiNi0.5Co0.2Mn0.3O2 modified by Graphene/V2O5 co-coating

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Self-assembled single crystal VO2 (A) microbelts by the reduction of V2O5 thin films: synthesis, structure and optical properties

Cited by 10 publications

References 41 publications

Size‐Dependent Insulator‐to‐Metal and Metal‐to‐Insulator Phase Transitions in VO2 Microrods Grown on a Silicon Substrate

Size‐Dependent Insulator‐to‐Metal and Metal‐to‐Insulator Phase Transitions in VO2 Microrods Grown on a Silicon Substrate

Multistep synthesis of VO2 (M) nanoparticles and their application to thermochromic hybrid films for IR modulation

Improved electrochemical performances of LiNi0.5Co0.2Mn0.3O2 modified by Graphene/V2O5 co-coating

Contact Info

Product

Resources

About

Size‐Dependent Insulator‐to‐Metal and Metal‐to‐Insulator Phase Transitions in VO₂ Microrods Grown on a Silicon Substrate

Size‐Dependent Insulator‐to‐Metal and Metal‐to‐Insulator Phase Transitions in VO₂ Microrods Grown on a Silicon Substrate

Multistep synthesis of VO₂ (M) nanoparticles and their application to thermochromic hybrid films for IR modulation