Coulomb effect inhibiting spontaneous emission in charged quantum dot

Show simple item record

dc.contributor.author Gradkowski, Kamil
dc.contributor.author Ochalski, Tomasz J.
dc.contributor.author Pavarelli, Nicola
dc.contributor.author Williams, David P.
dc.contributor.author Huyet, Guillaume
dc.contributor.author Liang, Baolai
dc.contributor.author Huffaker, Diana L.
dc.date.accessioned 2017-07-28T11:04:42Z
dc.date.available 2017-07-28T11:04:42Z
dc.date.issued 2010
dc.identifier.citation Gradkowski, K., Ochalski, T. J., Pavarelli, N., Williams, D. P., Huyet, G., Liang, B. and Huffaker, D. L. (2010) 'Coulomb effect inhibiting spontaneous emission in charged quantum dot', Applied Physics Letters, 97(9), pp. 091105. doi: 10.1063/1.3484143 en
dc.identifier.volume 97
dc.identifier.issued 9
dc.identifier.startpage 1
dc.identifier.endpage 3
dc.identifier.issn 0003-6951
dc.identifier.issn 1077-3118
dc.identifier.uri http://hdl.handle.net/10468/4334
dc.identifier.doi 10.1063/1.3484143
dc.description.abstract We investigate the emission dynamics of InAs/GaAs quantum dots (QDs) coupled to an InGaAs quantum well in a tunnel injection scheme by means of time-resolved photoluminescence. Under high-power excitation we observe a redshift in the QD emission of the order of 20 meV. The optical transition intensity shows a complex evolution, where an initial plateau phase is followed by an increase in intensity before a single-exponential decay. We attribute this behavior to the Coulomb interactions between the carriers in a charged QD and corroborate the experimental results with both a rate equation model and self-consistent eight-band k.p calculations. (C) 2010 American Institute of Physics. (doi:10.1063/1.3484143) en
dc.description.sponsorship Science Foundation Ireland (Contract Nos. 06/RFP/ENE014 and 07/IN.1/I929); European Commission (Marie Curie Actions Contract No. 041985); Higher Education Authority (under the framework of the INSPIRE programme, funded by the Irish Government’s Programme for Research in Third Level Institutions, Cycle 4, National Development Plan 2007-2013); Air Force Office of Scientific Research (AFOSR Grant No. FA 9550-08-1-0198); U.S. Department of Defense (DoD Grant No. NSS-EFF N00244-09-1-0091) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher AIP Publishing en
dc.relation.uri http://aip.scitation.org/doi/abs/10.1063/1.3484143
dc.rights © 2010 American Institute of Physics.This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. The following article appeared in Gradkowski, K., Ochalski, T. J., Pavarelli, N., Williams, D. P., Huyet, G., Liang, B. and Huffaker, D. L. (2010) 'Coulomb effect inhibiting spontaneous emission in charged quantum dot', Applied Physics Letters, 97(9), pp. 091105 and may be found at http://aip.scitation.org/doi/abs/10.1063/1.3484143 en
dc.subject Quantum dots en
dc.subject III-V semiconductors|\ Quantum wells en
dc.subject Red shift en
dc.subject Photoluminescence en
dc.title Coulomb effect inhibiting spontaneous emission in charged quantum dot en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Tomasz Ochalski, Tyndall National Institute, University College Cork, Cork, Ireland +353-21-490-3000 Email: tomasz.ochalski@tyndall.ie en
dc.internal.availability Full text available en
dc.description.version Published Version en
dc.internal.wokid WOS:000282187200005
dc.contributor.funder Science Foundation Ireland
dc.contributor.funder Higher Education Authority
dc.contributor.funder Air Force Office of Scientific Research
dc.contributor.funder U.S. Department of Defense
dc.contributor.funder FP7 People: Marie-Curie Actions
dc.description.status Peer reviewed en
dc.identifier.journaltitle Applied Physics Letters en
dc.internal.IRISemailaddress tomasz.ochalski@tyndall.ie en
dc.identifier.articleid 91105
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Research Frontiers Programme (RFP)/06/RFP/ENE014/IE/Next Generation Quantum Dot Materials and Devices/


Files in this item

This item appears in the following Collection(s)

Show simple item record

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