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Quantum confined Rydberg excitons in Cu2O nanoparticles

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dc.contributor.authorOrfanakis, Konstantinos
dc.contributor.authorRajendran, Sai Kiran
dc.contributor.authorOhadi, Hamid
dc.contributor.authorZielińska-Raczyńska, Sylwia
dc.contributor.authorCzajkowski, Gerard
dc.contributor.authorKarpiński, Karol
dc.contributor.authorZiemkiewicz, David
dc.date.accessioned2021-07-15T11:30:02Z
dc.date.available2021-07-15T11:30:02Z
dc.date.issued2021-06-21
dc.identifier274556419
dc.identifier78bce47e-a9f9-4aaf-a24c-7c41a09d5808
dc.identifier000664448700005
dc.identifier000664448700005
dc.identifier85109049274
dc.identifier.citationOrfanakis , K , Rajendran , S K , Ohadi , H , Zielińska-Raczyńska , S , Czajkowski , G , Karpiński , K & Ziemkiewicz , D 2021 , ' Quantum confined Rydberg excitons in Cu 2 O nanoparticles ' , Physical Review. B, Condensed matter and materials physics , vol. 103 , no. 24 , 245426 . https://doi.org/10.1103/PhysRevB.103.245426en
dc.identifier.issn1098-0121
dc.identifier.otherORCID: /0000-0001-6418-111X/work/97129981
dc.identifier.otherORCID: /0000-0002-9079-120X/work/100172740
dc.identifier.urihttps://hdl.handle.net/10023/23577
dc.descriptionFunding: UK EPSRC Grant No. EP/S014403/1 and The Royal Society RGS\R2\192174. K.O. acknowledges EPSRC for PhD studentship support through grant no. EP/L015110/1. S.K.R. acknowledges the Carnegie Trust for the Research Incentive Grant RIG009823.en
dc.description.abstractThe quantum confinement of Rydberg excitons is an important step towards exploiting their large nonlinearities for quantum applications. We observe Rydberg excitons in natural nanoparticles of Cu2O. We resolve up to the principal quantum number n=12 in a bulk Cu2O crystal and up to n=6 in nanoparticles extracted from the same crystal. The exciton transitions in nanoparticles are broadened and their oscillator strengths decrease as ∝n−4 compared to those in the bulk (decreasing as ∝n−3). We explain our results by including the effect of quantum confinement of exciton states in the nanoparticles. Our results provide an understanding of the physics of Cu2O Rydberg excitons in confined dimensions.
dc.format.extent6
dc.format.extent956410
dc.language.isoeng
dc.relation.ispartofPhysical Review. B, Condensed matter and materials physicsen
dc.subjectQC Physicsen
dc.subjectTK Electrical engineering. Electronics Nuclear engineeringen
dc.subjectDASen
dc.subject.lccQCen
dc.subject.lccTKen
dc.titleQuantum confined Rydberg excitons in Cu2O nanoparticlesen
dc.typeJournal articleen
dc.contributor.sponsorEPSRCen
dc.contributor.sponsorCarnegie Trusten
dc.contributor.institutionUniversity of St Andrews. School of Physics and Astronomyen
dc.contributor.institutionUniversity of St Andrews. Centre for Designer Quantum Materialsen
dc.identifier.doi10.1103/PhysRevB.103.245426
dc.description.statusPeer revieweden
dc.date.embargoedUntil2021-07-15
dc.identifier.grantnumberEP/S014403/1en
dc.identifier.grantnumberRIG009823en


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