Bandgap and refractive index estimates of InAlN and related nitrides across their full composition ranges

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dc.contributor.author Alam, Shahab N.
dc.contributor.author Zubialevich, Vitaly Z.
dc.contributor.author Ghafary, Bijan
dc.contributor.author Parbrook, Peter J.
dc.date.accessioned 2021-03-11T11:51:27Z
dc.date.available 2021-03-11T11:51:27Z
dc.date.issued 2020-10-01
dc.identifier.citation Alam, S. N., Zubialevich, V. Z., Ghafary, B. and Parbrook, P. J. (2020) 'Bandgap and refractive index estimates of InAlN and related nitrides across their full composition ranges', Scientific Reports, 10(1) 16205 (9 pp). doi: 10.1038/s41598-020-73160-7 en
dc.identifier.volume 10 en
dc.identifier.startpage 1 en
dc.identifier.endpage 9 en
dc.identifier.issn 2045-2322
dc.identifier.uri http://hdl.handle.net/10468/11130
dc.identifier.doi 10.1038/s41598-020-73160-7 en
dc.description.abstract III-Nitride bandgap and refractive index data are of direct relevance for the design of (In, Ga, Al)N-based photonic and electronic devices. The bandgaps and bandgap bowing parameters of III-nitrides across the full composition range are reviewed with a special emphasis on InxAl1−xN, where less consensus was reached in the literature previously. Considering the available InAlN data, including those recently reported for low indium contents, empirical formulae for InAlN bandgap and bandgap bowing parameter are proposed. Applying the generalised bandgap data, the refractive index dispersion data available in the literature for III-N alloys is fitted using the Adachi model. For this purpose, a formalism involving a parabolic dependence of the Adachi parameters on the dimensionless bandgap ξEg=(Eg,AxB1−xN−Eg,BN)/(Eg,AN−Eg,BN) of the corresponding ternary alloys is used rather than one directly invoking the alloy composition. en
dc.description.sponsorship Science Foundation Ireland (SFI under Grants No. SFI/10/IN.1/I2993 and SFI/12/RC/2276_P2); Irish Higher Education Authority (HEA Programme for Research in Third Level Institutions Cycles 4 and 5 via the INSPIRE and TYFFANI projects); Iranian Ministry of Science, Research and Technology (Studentship) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Springer Nature en
dc.relation.uri https://www.nature.com/articles/s41598-020-73160-7
dc.rights © The Authors 2021. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. en
dc.rights.uri http://creativecommons.org/licenses/by/4.0/ en
dc.subject Distributed Bragg reflectors en
dc.subject Molecular beam epitaxy en
dc.subject Gap bowing parameter en
dc.subject Optical properties en
dc.subject Dielectric function en
dc.subject Plane gan en
dc.subject Films en
dc.subject Alxga1-xn en
dc.subject Growth en
dc.subject Inxga1-xn en
dc.title Bandgap and refractive index estimates of InAlN and related nitrides across their full composition ranges en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Vitaly Zubialevich, Tyndall Photonics, University College Cork, Cork, Ireland. +353-21-490-3000 Email: vitaly.zubialevich@tyndall.ie en
dc.internal.availability Full text available en
dc.date.updated 2021-03-05T13:34:29Z
dc.description.version Submitted Version en
dc.internal.rssid 542043818
dc.internal.wokid WOS:000577142600017
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder Higher Education Authority en
dc.contributor.funder Ministry of Science Research and Technology en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Scientific Reports en
dc.internal.copyrightchecked Yes
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress vitaly.zubialevich@tyndall.ie en
dc.internal.IRISemailaddress peter.parbrook@tyndall.ie en
dc.identifier.articleid 16205 en


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© The Authors 2021. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. Except where otherwise noted, this item's license is described as © The Authors 2021. Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
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