Screened Coulomb hybrid density functional investigation of oxygen point defects on ZnO nanowires
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Date
2018
Authors
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Access Rights
info:eu-repo/semantics/openAccess
Abstract
In this study, oxygen vacancies and adatoms have been considered on the surface of both hexagonal anssd triangular ZnO nanowires. Their effect on the electronic structure and optical spectra of the nanowires have been investigated using the exact exchange hybrid density functional theory calculations. A surface oxygen vacancy gives rise to appearance of a band gap state at almost 0.7 eV above the valence band of the both types of the nanowires while an oxygen adatom show bulk-like electronic properties. A shape dependence is also indicated by the calculated physical quantities of oxygen related point defects on ZnO nanowires. (C) 2018 Elsevier B.V. All rights reserved.
Description
Keywords
Journal or Series
Computational Condensed Matter
WoS Q Value
N/A
Scopus Q Value
Q2
Volume
16
