2014
DOI: 10.1016/j.actamat.2014.04.068
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Hybrid Hartree–Fock-density functional theory study of V2O5 three phases: Comparison of bulk and layer stability, electron and phonon properties

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Cited by 20 publications
(36 citation statements)
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“…2a, the PDOS of V 2 O 5 exhibits semiconducting character with a calculated band gap of 2.26 eV, which is consistent with the other work employing the PBE+U method 54 and agrees well with the experimental band gap of 2.3 eV. 72 The valence band mainly comprises O 2p states with some contributions from V 3d states. The conduction band exhibits a unique split-off band character due to the strong deviations of the distorted VO 5 square pyramids from their cubic symmetry, the VO 6 octahedra.…”
Section: Atomic and Electronic Structuressupporting
confidence: 90%
“…2a, the PDOS of V 2 O 5 exhibits semiconducting character with a calculated band gap of 2.26 eV, which is consistent with the other work employing the PBE+U method 54 and agrees well with the experimental band gap of 2.3 eV. 72 The valence band mainly comprises O 2p states with some contributions from V 3d states. The conduction band exhibits a unique split-off band character due to the strong deviations of the distorted VO 5 square pyramids from their cubic symmetry, the VO 6 octahedra.…”
Section: Atomic and Electronic Structuressupporting
confidence: 90%
“…Structure and properties of the V 2 O 5 ‐based SWNTs had been previously analyzed in several works, using various levels of theory. The authors had shown that two bulk phases (α and γ) of V 2 O 5 can be equally considered as the nanotube precursors. In particular, the nanotubes based on both phases exhibit close formation energy and a similar electronic structure.…”
Section: Introductionmentioning
confidence: 99%
“…having same yellowish orange color. 34,35 The differences in the polymorphs arise due to their structures viz. their lattice parameters as well as the way in which the V 2 O 5 pyramids are oriented or stacked.…”
Section: Resultsmentioning
confidence: 99%