Multi-wavelength emission from a single InGaN/GaN nanorod analyzed by cathodoluminescence hyperspectral imaging

Show simple item record

dc.contributor.author Kusch, Gunnar
dc.contributor.author Conroy, Michele
dc.contributor.author Li, Haoning
dc.contributor.author Edwards, Paul R.
dc.contributor.author Zhao, Chao
dc.contributor.author Ooi, Boon S.
dc.contributor.author Pugh, Jon
dc.contributor.author Cryan, Martin J.
dc.contributor.author Parbrook, Peter J.
dc.contributor.author Martin, Robert W.
dc.date.accessioned 2018-06-15T11:47:17Z
dc.date.available 2018-06-15T11:47:17Z
dc.date.issued 2018
dc.identifier.citation Kusch, G., Conroy, M., Li, H., Edwards, P. R., Zhao, C., Ooi, B. S., Pugh, J., Cryan, M. J., Parbrook, P. J. and Martin, R. W. (2018) 'Multi-wavelength emission from a single InGaN/GaN nanorod analyzed by cathodoluminescence hyperspectral imaging', Scientific Reports, 8(1), 1742 (8pp). doi: 10.1038/s41598-018-20142-5 en
dc.identifier.volume 8
dc.identifier.startpage 1
dc.identifier.endpage 8
dc.identifier.issn 2045-2322
dc.identifier.uri http://hdl.handle.net/10468/6348
dc.identifier.doi 10.1038/s41598-018-20142-5
dc.description.abstract Multiple luminescence peaks emitted by a single InGaN/GaN quantum-well(QW) nanorod, extending from the blue to the red, were analysed by a combination of electron microscope based imaging techniques. Utilizing the capability of cathodoluminescence hyperspectral imaging it was possible to investigate spatial variations in the luminescence properties on a nanoscale. The high optical quality of a single GaN nanorod was demonstrated, evidenced by a narrow band-edge peak and the absence of any luminescence associated with the yellow defect band. Additionally two spatially confined broad luminescence bands were observed, consisting of multiple peaks ranging from 395 nm to 480 nm and 490 nm to 650 nm. The lower energy band originates from broad c-plane QWs located at the apex of the nanorod and the higher energy band from the semipolar QWs on the pyramidal nanorod tip. Comparing the experimentally observed peak positions with peak positions obtained from plane wave modelling and 3D finite difference time domain(FDTD) modelling shows modulation of the nanorod luminescence by cavity modes. By studying the influence of these modes we demonstrate that this can be exploited as an additional parameter in engineering the emission profile of LEDs. en
dc.description.sponsorship Engineering and Physical Sciences Research Council (EP/M003132/1); Higher Education Authority ( INSPIRE and TYFFANI) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Nature Publishing Group en
dc.relation.uri https://www.nature.com/articles/s41598-018-20142-5
dc.rights © 2018, the Authors. 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 license, and indicate if changes were made. Te images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. en
dc.rights.uri http://creativecommons.org/licenses/by/4.0/
dc.subject Whispering-gallery modes en
dc.subject GaN rods en
dc.subject Nitride en
dc.subject Nanostructures en
dc.subject Polaritons en
dc.subject Microscopy en
dc.subject Arrays en
dc.title Multi-wavelength emission from a single InGaN/GaN nanorod analyzed by cathodoluminescence hyperspectral imaging en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Haiyang Li, Tyndall National Institute, University College Cork, Cork, Ireland. +353-21-490-3000 Email: haiyang.li@tyndall.ie en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.contributor.funder Engineering and Physical Sciences Research Council
dc.contributor.funder Science Foundation Ireland
dc.contributor.funder Higher Education Authority
dc.description.status Peer reviewed
dc.identifier.journaltitle Scientific Reports en
dc.internal.IRISemailaddress Haoning.li@tyndall.ie en
dc.identifier.articleid 1742
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Principal Investigator Programme (PI)/10/IN.1/I2993/IE/Advanced Ultraviolet Emitters from InAlN Based Alloy Structures/
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Stokes Professorship & Lectureship Programme/07/EN/E001A/IE/Peter Parbrook/


Files in this item

This item appears in the following Collection(s)

Show simple item record

© 2018, the Authors. 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 license, and indicate if changes were made. Te images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/. Except where otherwise noted, this item's license is described as © 2018, the Authors. 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 license, and indicate if changes were made. Te images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
This website uses cookies. By using this website, you consent to the use of cookies in accordance with the UCC Privacy and Cookies Statement. For more information about cookies and how you can disable them, visit our Privacy and Cookies statement