An enhanced surface passivation effect in InGaN/GaN disk-in-nanowire light emitting diodes for mitigating Shockley-Read-Hall recombination

Show simple item record

dc.contributor.author Zhao, Chao
dc.contributor.author Ng, Tien Khee
dc.contributor.author Prabaswara, Aditya
dc.contributor.author Conroy, Michele
dc.contributor.author Jahangir, Shafat
dc.contributor.author Frost, Thomas
dc.contributor.author O'Connell, John
dc.contributor.author Holmes, Justin D.
dc.contributor.author Parbrook, Peter J.
dc.contributor.author Bhattacharya, P.
dc.contributor.author Ooi, Boon S.
dc.date.accessioned 2016-03-07T13:05:43Z
dc.date.available 2016-03-07T13:05:43Z
dc.date.issued 2015-07-24
dc.identifier.citation ZHAO, C., NG, T. K., PRABASWARA, A., CONROY, M., JAHANGIR, S., FROST, T., O'CONNELL, J., HOLMES, J. D., PARBROOK, P. J., BHATTACHARYA, P. & OOI, B. S. 2015. An enhanced surface passivation effect in InGaN/GaN disk-in-nanowire light emitting diodes for mitigating Shockley-Read-Hall recombination. Nanoscale, 7, 16658-16665. http://dx.doi.org/10.1039/C5NR03448E en
dc.identifier.volume 7 en
dc.identifier.issued 40 en
dc.identifier.startpage 16658 en
dc.identifier.endpage 16665 en
dc.identifier.issn 2040-3364
dc.identifier.uri http://hdl.handle.net/10468/2418
dc.identifier.doi 10.1039/c5nr03448e
dc.description.abstract We present a detailed study of the effects of dangling bond passivation and the comparison of different sulfide passivation processes on the properties of InGaN/GaN quantum-disk (Qdisk)-in-nanowire based light emitting diodes (NW-LEDs). Our results demonstrated the first organic sulfide passivation process for nitride nanowires (NWs). The results from Raman spectroscopy, photoluminescence (PL) measurements, and X-ray photoelectron spectroscopy (XPS) showed that octadecylthiol (ODT) effectively passivated the surface states, and altered the surface dynamic charge, and thereby recovered the band-edge emission. The effectiveness of the process with passivation duration was also studied. Moreover, we also compared the electro-optical performance of NW-LEDs emitting at green wavelength before and after ODT passivation. We have shown that the Shockley–Read–Hall (SRH) non-radiative recombination of NW-LEDs can be greatly reduced after passivation by ODT, which led to a much faster increasing trend of quantum efficiency and higher peak efficiency. Our results highlighted the possibility of employing this technique to further design and produce high performance NW-LEDs and NW-lasers. en
dc.description.sponsorship King Abdullah University of Science and Technology, Saudi Arabia (KAUST Competitive Research Grant) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher The Royal Society of Chemistry en
dc.relation.uri http://pubs.rsc.org/en/journals/journalissues/nr#!recentarticles&adv
dc.rights © The Royal Society of Chemistry 2015. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. en
dc.rights.uri http://creativecommons.org/licenses/by/3.0/ en
dc.subject Efficiency en
dc.subject Nanowires en
dc.subject Passivation en
dc.subject Quantum efficiency en
dc.subject X ray photoelectron spectroscopy en
dc.subject Band-edge emissions en
dc.subject Electro optical performance en
dc.subject Nanowire light emitting diodes en
dc.subject Non-radiative recombinations en
dc.subject Photoluminescence measurements en
dc.subject Shockley-Read-Hall recombinations en
dc.subject Sulfide passivations en
dc.subject Light emitting diodes en
dc.title An enhanced surface passivation effect in InGaN/GaN disk-in-nanowire light emitting diodes for mitigating Shockley-Read-Hall recombination en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Justin D. Holmes, Chemistry, University College Cork, Cork, Ireland. +353-21-490-3000 Email: j.holmes@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2015-12-11T10:41:29Z
dc.description.version Published Version en
dc.internal.rssid 324341717
dc.contributor.funder King Abdullah University of Science and Technology en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Nanoscale en
dc.internal.copyrightchecked No. !!CORA!! Non standard RSC policy. This article is licensed under Creative Commons Attribution 3.0 Unported Licence en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress j.holmes@ucc.ie en


Files in this item

This item appears in the following Collection(s)

Show simple item record

© The Royal Society of Chemistry 2015. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence. Except where otherwise noted, this item's license is described as © The Royal Society of Chemistry 2015. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
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