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Show simple item record Raleaooa, PV Roodt, A Mhlongo, Gugu H Motaung, David E Ntwaeaborwa, OM 2018-01-31T06:49:54Z 2018-01-31T06:49:54Z 2018-01
dc.identifier.citation Raleaooa, P.V. et al. 2018. Analysis of the structure, particle morphology and photoluminescent properties of ZnS:Mn2+ nanoparticulate phosphors. Optik - International Journal for Light and Electron Optics, vol. 153: 31-42 en_US
dc.identifier.issn 0030-4026
dc.description Copyright: 2017 Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, please consult the publisher's website. en_US
dc.description.abstract The structure, particle morphology and photoluminescent properties of n(sup2+) doped ZnS nanoparticles are reported. The X-ray powder diffraction studies showed that incorporation of Mn(sup2+) did not cause any change to the crystallized cubic (sphalerite) phase of ZnS but it reduced crystallinity due to increased incoherent scattering resulting in increased broadening of the diffraction peaks. The average crystallite size calculated from the broadening of the X-ray diffraction peaks using Scherrer equation was ~2 nm implying that our particles were highly quantum confined. The field emission scanning electron microscopy data confirmed that the undoped ZnS powders consisted mainly of an agglomeration of spherical particles while the Mn(sup2+) doped powders consistent of particles with irregular shapes. The photoluminescence spectroscopy showed simultaneous blue and orange emissions associated with radiative transitions in ZnS and Mn(sup2+) respectively. Postulated mechanism of this dual emission is discussed. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Worklist;20160
dc.subject Sol-gel en_US
dc.subject Photoluminescence en_US
dc.subject Phosphor en_US
dc.subject Nanoparticles en_US
dc.title Analysis of the structure, particle morphology and photoluminescent properties of ZnS:Mn2+ nanoparticulate phosphors en_US
dc.type Article en_US

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