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Browsing by Author "Mbule, PS"

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Photoluminescence quenching and enhanced optical conductivity of P3HT derived Ho3+-doped ZnO nanostructures

Author: Kabongo, GL ; Mbule, PS ; Mhlongo, Gugu H ; Mothudi, BM ; Hillie, Kenneth T ; Dhlamini, MS Date: Dec 2016 In this article, we demonstrate the surface effect and optoelectronic properties of holmium (Ho(sup3+))-doped ZnO in P3HT polymer nanocomposite. We incorporated ZnO:Ho(sup3+) (0.5 mol% Ho) nanostructures in the pristine P3HT-conjugated polymer ... Read more
Sensitizing effects of ZnO quantum dots on red-emitting Pr3+-doped SiO2 phosphor

Author: Mbule, PS ; Mhlongo, Gugu H ; Pitale, SS ; Swart, HC ; Ntwaeaborwa, OM Date: May 2012 In this study, red cathodoluminescence (CL) ( emission=614 nm) was observed from Pr3+ ions in a glassy (amorphous) SiO2 host. This emission was enhanced considerably when ZnO quantum dots (QDs) were incorporated in the SiO2:Pr3+ suggesting ... Read more
Sol-gel preparation and characterization of Er3+ doped TiO2 luminescent nanoparticles

Author: Talane, TE ; Mbule, PS ; Noto, LL ; Shingange, Katekani ; Mhlongo, Gugu H ; Mothudi, BM ; Dhlamini, MS Date: Dec 2018 The present paper reports on down-and up-conversion luminescence behaviour of sol-gel derived erbium doped titanium dioxide with anatase structure. Through combined structural, optical and electron microscope analysis, effective and influence ... Read more
Structural, photoluminescence and XPS properties of Tm3þ ions in ZnO nanostructures

Author: Kabongo, GL ; Mhlongo, Gugu H ; Mothudi, BM ; Hillie, Kenneth T ; Mbule, PS ; Dhlamini, MS Date: Jul 2017 In the present study, a succession of thulium (Tm)-doped zinc oxide (ZnO) nanostructures samples were prepared by sol-gel method using zinc acetate dihydrate, thulium nitrate pentahydrate and sodium hydroxide species with absolute ethanol as ... Read more
Time-resolved fluorescence decay and Gaussian analysis of P3HT-derived Ho3+- and Tm3+-doped ZnO nanostructures

Author: Kabongo, GL ; Mbule, PS ; Mhlongo, Gugu H ; Mothudi, BM ; Dhlamini, MS Date: Jan 2020 The fluorescence vibrational features of as-synthesized P3HT–ZnO:Ho3+ and P3HT–ZnO:Tm3+ thin films were investigated using Gaussian analysis. Relative to P3HT–ZnO:Tm3+ film, detailed Gaussian analysis of the fluorescence spectra revealed ... Read more

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Browsing by Author "Mbule, PS"

Browsing by Author "Mbule, PS"

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