Theoretical and experimental investigation of point defects in cubic boron nitride

McDougall, N, Partridge, J, Lau, D, Reineck, P, Gibson, B, Ohshima, T and McCulloch, D 2017, 'Theoretical and experimental investigation of point defects in cubic boron nitride', MRS Advances, vol. 2, no. 29, pp. 1545-1550.


Document type: Journal Article
Collection: Journal Articles

Title Theoretical and experimental investigation of point defects in cubic boron nitride
Author(s) McDougall, N
Partridge, J
Lau, D
Reineck, P
Gibson, B
Ohshima, T
McCulloch, D
Year 2017
Journal name MRS Advances
Volume number 2
Issue number 29
Start page 1545
End page 1550
Total pages 6
Publisher Cambridge University Press
Abstract Cubic boron nitride (cBN) is a synthetic wide band gap material that has attracted attention due to its high thermal conductivity, optical transparency and optical emission. In this work, defects in cBN have been investigated using experimental and theoretical X-ray absorption near edge structure (XANES). Vacancy and O substitutional defects were considered, with O substituted at the N site (ON) to be the most energetically favorable. All defects produce unique signatures in either the B or N K-edges and can thus be identified using XANES. The calculations coupled with electron-irradiation / annealing experiments strongly suggest that ON is the dominant defect in irradiated cBN and remains after annealing. This defect is a likely source of optical emission in cBN.
Subject Physical Chemistry of Materials
Optical Properties of Materials
Keyword(s) electron irradiation
electronic structure
simulation
DOI - identifier 10.1557/adv.2017.53
Copyright notice © 2017 Materials Research Society
ISSN 2059-8521
Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 1 times in Thomson Reuters Web of Science Article | Citations
Scopus Citation Count Cited 0 times in Scopus Article
Altmetric details:
Access Statistics: 10 Abstract Views  -  Detailed Statistics
Created: Tue, 26 Mar 2019, 09:36:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us