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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 |