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Luminescent properties and quenching effects of Pr3+ co-doping in SiO2:Tb3+/Eu3+ nanophosphors

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dc.contributor.author Mhlongo, Gugu H
dc.contributor.author Dhlamini, MS
dc.contributor.author Ntwaeaborwa, OM
dc.contributor.author Swart, HC
dc.contributor.author Hillie, KT
dc.date.accessioned 2014-09-22T13:40:06Z
dc.date.available 2014-09-22T13:40:06Z
dc.date.issued 2014-02
dc.identifier.citation Mhlongo, G.H, Dhlamini, M.S, Ntwaeaborwa, O.M, Swart, H.C and Hillie, K.T. 2014. Luminescent properties and quenching effects of Pr3+ co-doping in SiO2:Tb3+/Eu3+ nanophosphors. Optical Materials, vol. 36(4), pp 732- 739 en_US
dc.identifier.issn 0925-3467
dc.identifier.uri http://ac.els-cdn.com/S0925346713005636/1-s2.0-S0925346713005636-main.pdf?_tid=69dc6710-3e69-11e4-8893-00000aab0f02&acdnat=1410958499_bd402db0ff2916dfec36e0ccf9a00757
dc.identifier.uri http://hdl.handle.net/10204/7678
dc.identifier.uri https://www.sciencedirect.com/science/article/pii/S0925346713005636
dc.identifier.uri https://doi.org/10.1016/j.optmat.2013.10.031
dc.description Copyright: 2014 Elsevier. This is an ABSTRACT ONLY. The definitive version is published in Optical Materials, vol. 36(4), pp 732-739 en_US
dc.description.abstract Luminescence properties of Pr(sup3+) single doped SiO2 and Pr(sup3+) co-doped SiO(sub2):Tb(sup3+)/Eu(sup3+) nanophosphors synthesized using sol–gel method were investigated. X-ray diffraction (XRD), and scanning electron microscope (SEM) were used to study the phase structure and particle morphology, respectively. The photoluminescence (PL) and cathodoluminescence (CL) properties of SiO(sub2):Pr(sup3+) and Pr(sup3+) co-doped SiO(sub2):Tb(sup3+)/Eu(sup3+) were investigated. The concentration quenching effects at high concentrations of Pr(sup3+) were observed from both PL and CL data. The PL and CL intensities from SiO(sub2):Eu(sup3+)/Tb(sup3+) nanophosphors were shown to decrease significantly with Pr(sup3+) co-doping and the possible causes for the decrease are discussed Fluorescence lifetimes of the (sup1)D(sub2) emitting level of Pr(sup3+) were determined from luminescence decay curves of SiO(sub2):Pr(sup3+) at different Pr(sup3+) concentrations. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Workflow;13373
dc.subject Luminescence en_US
dc.subject Rare earth phosphors en_US
dc.subject Quenching effects en_US
dc.title Luminescent properties and quenching effects of Pr3+ co-doping in SiO2:Tb3+/Eu3+ nanophosphors en_US
dc.type Article en_US
dc.identifier.apacitation Mhlongo, G. H., Dhlamini, M., Ntwaeaborwa, O., Swart, H., & Hillie, K. (2014). Luminescent properties and quenching effects of Pr3+ co-doping in SiO2:Tb3+/Eu3+ nanophosphors. http://hdl.handle.net/10204/7678 en_ZA
dc.identifier.chicagocitation Mhlongo, Gugu H, MS Dhlamini, OM Ntwaeaborwa, HC Swart, and KT Hillie "Luminescent properties and quenching effects of Pr3+ co-doping in SiO2:Tb3+/Eu3+ nanophosphors." (2014) http://hdl.handle.net/10204/7678 en_ZA
dc.identifier.vancouvercitation Mhlongo GH, Dhlamini M, Ntwaeaborwa O, Swart H, Hillie K. Luminescent properties and quenching effects of Pr3+ co-doping in SiO2:Tb3+/Eu3+ nanophosphors. 2014; http://hdl.handle.net/10204/7678. en_ZA
dc.identifier.ris TY - Article AU - Mhlongo, Gugu H AU - Dhlamini, MS AU - Ntwaeaborwa, OM AU - Swart, HC AU - Hillie, KT AB - Luminescence properties of Pr(sup3+) single doped SiO2 and Pr(sup3+) co-doped SiO(sub2):Tb(sup3+)/Eu(sup3+) nanophosphors synthesized using sol–gel method were investigated. X-ray diffraction (XRD), and scanning electron microscope (SEM) were used to study the phase structure and particle morphology, respectively. The photoluminescence (PL) and cathodoluminescence (CL) properties of SiO(sub2):Pr(sup3+) and Pr(sup3+) co-doped SiO(sub2):Tb(sup3+)/Eu(sup3+) were investigated. The concentration quenching effects at high concentrations of Pr(sup3+) were observed from both PL and CL data. The PL and CL intensities from SiO(sub2):Eu(sup3+)/Tb(sup3+) nanophosphors were shown to decrease significantly with Pr(sup3+) co-doping and the possible causes for the decrease are discussed Fluorescence lifetimes of the (sup1)D(sub2) emitting level of Pr(sup3+) were determined from luminescence decay curves of SiO(sub2):Pr(sup3+) at different Pr(sup3+) concentrations. DA - 2014-02 DB - ResearchSpace DP - CSIR KW - Luminescence KW - Rare earth phosphors KW - Quenching effects LK - https://researchspace.csir.co.za PY - 2014 SM - 0925-3467 T1 - Luminescent properties and quenching effects of Pr3+ co-doping in SiO2:Tb3+/Eu3+ nanophosphors TI - Luminescent properties and quenching effects of Pr3+ co-doping in SiO2:Tb3+/Eu3+ nanophosphors UR - http://hdl.handle.net/10204/7678 ER - en_ZA


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