Journal ArticleDOI
IR spectra of VO2 and V2O3
TLDR
In this article, the effect of atmospheric oxygen on the IR spectra of the two lower-valent vanadium oxides, obtained on temperature-programmed reduction treatment, were also characterized with diffuse reflectance and electron-paramagnetic resonance spectra.About:
This article is published in Materials Chemistry and Physics.The article was published on 1997-10-15. It has received 104 citations till now. The article focuses on the topics: Infrared spectroscopy & X-ray photoelectron spectroscopy.read more
Citations
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Journal ArticleDOI
Mechanism and observation of Mott transition in VO2-based two- and three-terminal devices
Hyun-Tak Kim,Byung-Gyu Chae,Doo-Hyeb Youn,Sunglyul Maeng,Gyungock Kim,Kwang-Yong Kang,Yong-Sik Lim +6 more
TL;DR: When holes of about 0.018% are induced into a conduction band (breakdown of critical on-site Coulomb energy), an abrupt first-order Mott metal-insulator transition (MIT) was observed on an inhomogeneous VO2 film, a strongly correlated Mott insulator.
Journal ArticleDOI
Thermochromic VO2 Films Deposited by RF Magnetron Sputtering Using V2O3 or V2O5 Targets.
TL;DR: In this article, thermochromic monoclinic-tetragonal VO2 films were successfully deposited on glass substrates with high reproducibility by rf magnetron sputtering using V2O3 or v2O5 targets.
Journal ArticleDOI
Topotactic redox reactions of copper(II) and iron(III) salts within VOx nanotubes
TL;DR: In this paper, the intercalation of the transition metal species within the multi-wall structure of the tubes does not significantly affect the overall tubular morphology, but leads to a significant reduction of the inter-layer distance in the multiwalls from 3.02 to 1.05 nm.
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New aspects of size-dependent metal-insulator transition in synthetic single-domain monoclinic vanadium dioxide nanocrystals.
TL;DR: This new characterization strategy of in situ variable-temperature IR spectroscopy holds great promise for extending to other systems to gain valuable insight into their intrinsic phase transition behaviors and paves the way for constructing intelligent nanodevices in the near future.
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Infrared thermochromic properties of monoclinic VO2 nanopowders using a malic acid-assisted hydrothermal method for adaptive camouflage
TL;DR: In this paper, the phase transition properties of the monoclinic VO2 nanopowders were studied using differential scanning calorimetry, which displayed an obvious phase transition at 67.2 °C with a narrow thermal hysteresis width of 4.9 °C.
References
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Journal ArticleDOI
The two components of the crystallographic transition in VO2
TL;DR: In this article, two distinguishable mechanisms of the monoclinic-to-tetragonal transition in VO 2 are identified: an antiferroelectric-toparaelectric transition at a temperature T t as well as a change from homopolar to metallic VV bonding at T t.
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XPS studies of V2O5, V6O13, VO2 and V2O3
TL;DR: In this article, a detailed XPS study of several oxides of vanadium is reported in an attempt to characterize clearly the surface of these oxides, and several parameters, such as the FWHM of the v2p 3 2 and O1s XPS peaks, their shape and binding energy difference, have been utilized.
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Oxide phonon spectra
I. R. Beattie,T. R. Gilson +1 more
TL;DR: In this article, an attempt is made to apply group frequency assignment to the vibrational spectra of oxides, and the following oxides are considered: TiO2(both anatase and rutile), SnO2 (cassiterite), ZnO, WO3, CeO2, ThO2 and MoO3.
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Factors influencing the temperature-programmed reduction profiles of vanadium pentoxide
TL;DR: In this paper, the effect of sample weight and heating rate on the reducibility of V2O5-containing catalysts has been studied as a function of flow rate, heating rate and sample weight.