Multicolor light emitters based on energy exchange between Tb and Eu ions co-doped into ultrasmall β-NaYF 4 nanocrystals

Handle URI:
http://hdl.handle.net/10754/561998
Title:
Multicolor light emitters based on energy exchange between Tb and Eu ions co-doped into ultrasmall β-NaYF 4 nanocrystals
Authors:
Podhorodecki, Artur P.; Bański, Mateusz; Misiewicz, Jan J.; Afzaal, Mohammad; O'Brien, Paul J.; Cha, Dong Kyu; Wang, Xianbin
Abstract:
Multicolor emission is reported from ultrasmall (<10 nm) β-NaYF4:Eu,Tb nanocrystals depending on the excitation wavelengths or emission detection delay time. Detailed optical investigations of three samples (NaYF4:Eu, NaYF4:Tb and NaYF4:Eu,Tb) obtained by a co-thermolysis method have been carried out. Photoluminescence, photoluminescence excitation and emission decay time obtained at different excitation wavelengths have been measured. Excitation mechanisms of Eu and Tb ions have been explained based on the experimental results and calculations using Judd-Ofelt theory. It has been shown that efficient energy transfer from Tb to Eu ions accounts for the efficient red emission of NaYF4:Tb,Eu nanocrystals. © The Royal Society of Chemistry 2012.
KAUST Department:
Advanced Nanofabrication, Imaging and Characterization Core Lab; Core Labs
Publisher:
Royal Society of Chemistry (RSC)
Journal:
Journal of Materials Chemistry
Issue Date:
2012
DOI:
10.1039/c2jm15785c
Type:
Article
ISSN:
09599428
Sponsors:
The authors thank the National Centre for Research and Development for financial support within the LIDER project no. 014/L-2/10. Moreover, authors would like to thank Dr D. Piatkowski from Nicolaus Copernicus University, Torun, Poland, for writing the software used by us to calculate lanthanide energy levels. M.A. would like to thank the Center of Research Excellence in Renewable Energy, KFUPM, for the support and Prof. N. Tabet (Dept. Physics. KFUPM) for establishing the CORERE-KAUST collaboration. M.B. acknowledges the financial support from a fellowship co-financed by European Union within European Social Fund.
Appears in Collections:
Articles; Advanced Nanofabrication, Imaging and Characterization Core Lab

Full metadata record

DC FieldValue Language
dc.contributor.authorPodhorodecki, Artur P.en
dc.contributor.authorBański, Mateuszen
dc.contributor.authorMisiewicz, Jan J.en
dc.contributor.authorAfzaal, Mohammaden
dc.contributor.authorO'Brien, Paul J.en
dc.contributor.authorCha, Dong Kyuen
dc.contributor.authorWang, Xianbinen
dc.date.accessioned2015-08-03T09:35:55Zen
dc.date.available2015-08-03T09:35:55Zen
dc.date.issued2012en
dc.identifier.issn09599428en
dc.identifier.doi10.1039/c2jm15785cen
dc.identifier.urihttp://hdl.handle.net/10754/561998en
dc.description.abstractMulticolor emission is reported from ultrasmall (<10 nm) β-NaYF4:Eu,Tb nanocrystals depending on the excitation wavelengths or emission detection delay time. Detailed optical investigations of three samples (NaYF4:Eu, NaYF4:Tb and NaYF4:Eu,Tb) obtained by a co-thermolysis method have been carried out. Photoluminescence, photoluminescence excitation and emission decay time obtained at different excitation wavelengths have been measured. Excitation mechanisms of Eu and Tb ions have been explained based on the experimental results and calculations using Judd-Ofelt theory. It has been shown that efficient energy transfer from Tb to Eu ions accounts for the efficient red emission of NaYF4:Tb,Eu nanocrystals. © The Royal Society of Chemistry 2012.en
dc.description.sponsorshipThe authors thank the National Centre for Research and Development for financial support within the LIDER project no. 014/L-2/10. Moreover, authors would like to thank Dr D. Piatkowski from Nicolaus Copernicus University, Torun, Poland, for writing the software used by us to calculate lanthanide energy levels. M.A. would like to thank the Center of Research Excellence in Renewable Energy, KFUPM, for the support and Prof. N. Tabet (Dept. Physics. KFUPM) for establishing the CORERE-KAUST collaboration. M.B. acknowledges the financial support from a fellowship co-financed by European Union within European Social Fund.en
dc.publisherRoyal Society of Chemistry (RSC)en
dc.titleMulticolor light emitters based on energy exchange between Tb and Eu ions co-doped into ultrasmall β-NaYF 4 nanocrystalsen
dc.typeArticleen
dc.contributor.departmentAdvanced Nanofabrication, Imaging and Characterization Core Laben
dc.contributor.departmentCore Labsen
dc.identifier.journalJournal of Materials Chemistryen
dc.contributor.institutionInstitute of Physics, Wroclaw University of Technology, Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Polanden
dc.contributor.institutionCenter of Research Excellence in Renewable Energy, King Fahd University of Petroleum and Minerals, PO Box 1292, Dhahran, 31261, Saudi Arabiaen
dc.contributor.institutionManchester Materials Science Centre, School of Chemistry, University of Manchester, Oxford Road, Manchester, M13 9PL, United Kingdomen
kaust.authorCha, Dong Kyuen
kaust.authorWang, Xianbinen
All Items in KAUST are protected by copyright, with all rights reserved, unless otherwise indicated.