Dhlamini, MSMhlongo, Gugu HSwart, HCNtwaeaborwa, OWHillie, KT2018-01-042018-01-042012-05Dhlamini, M.S. et al. 2012. Concentration effect of Tm3+ on cathodoluminescence properties of SiO2: Tm3+ and SiO2:Ho3+, Tm3+ systems. Physica B, vol. 407(10): 1582-15850921-4526http://www.sciencedirect.com/science/article/pii/S0921452611009823https://doi.org/10.1016/j.physb.2011.09.091https://ac.els-cdn.com/S0921452611009823/1-s2.0-S0921452611009823-main.pdf?_tid=099be8c8-b88a-11e7-89be-00000aab0f02&acdnat=1508829046_b184452839449fc226a99b2fc041ffd1http://hdl.handle.net/10204/9933Copyright: 2011 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.Cathodoluminescence (CL) properties of SiO2 powders activated with thulium (Tm3+) and holmium (Ho3+) ions prepared by a sol–gel process were investigated. Different molar concentrations of Tm3+ co-doped with Ho3+ were studied. The 460 nm peak was monitored and the influence of the beam energy and concentration of Tm3+ ions on the emission properties of this peak was also monitored. The peculiar behavior whereby the 460 nm emission peak decreases and the increase in the 705 and 865 nm peaks with the increase in the concentration of Tm3+ ions is reported. The relationship between the accelerating beam voltage and the CL intensity of the blue emission peak (460 nm peak) is established. Morphology, particle size and optical properties were characterized with Scanning electron microscopy (SEM), UV/VIS Lambda 750 S spectrometer and Auger electron spectroscopy (AES) equipped with Ocean Optics S2000, respectively.enSiO2CathodoluminescenceBeam voltageAuger electron spectroscopyAESTm3+ concentrationArticleDhlamini, M., Mhlongo, G. H., Swart, H., Ntwaeaborwa, O., & Hillie, K. (2012). Concentration effect of Tm3+ on cathodoluminescence properties of SiO2: Tm3+ and SiO2:Ho3+, Tm3+ systems. http://hdl.handle.net/10204/9933Dhlamini, MS, Gugu H Mhlongo, HC Swart, OW Ntwaeaborwa, and KT Hillie "Concentration effect of Tm3+ on cathodoluminescence properties of SiO2: Tm3+ and SiO2:Ho3+, Tm3+ systems." (2012) http://hdl.handle.net/10204/9933Dhlamini M, Mhlongo GH, Swart H, Ntwaeaborwa O, Hillie K. Concentration effect of Tm3+ on cathodoluminescence properties of SiO2: Tm3+ and SiO2:Ho3+, Tm3+ systems. 2012; http://hdl.handle.net/10204/9933.TY - Article AU - Dhlamini, MS AU - Mhlongo, Gugu H AU - Swart, HC AU - Ntwaeaborwa, OW AU - Hillie, KT AB - Cathodoluminescence (CL) properties of SiO2 powders activated with thulium (Tm3+) and holmium (Ho3+) ions prepared by a sol–gel process were investigated. Different molar concentrations of Tm3+ co-doped with Ho3+ were studied. The 460 nm peak was monitored and the influence of the beam energy and concentration of Tm3+ ions on the emission properties of this peak was also monitored. The peculiar behavior whereby the 460 nm emission peak decreases and the increase in the 705 and 865 nm peaks with the increase in the concentration of Tm3+ ions is reported. The relationship between the accelerating beam voltage and the CL intensity of the blue emission peak (460 nm peak) is established. Morphology, particle size and optical properties were characterized with Scanning electron microscopy (SEM), UV/VIS Lambda 750 S spectrometer and Auger electron spectroscopy (AES) equipped with Ocean Optics S2000, respectively. DA - 2012-05 DB - ResearchSpace DP - CSIR KW - SiO2 KW - Cathodoluminescence KW - Beam voltage KW - Auger electron spectroscopy KW - AES KW - Tm3+ concentration LK - https://researchspace.csir.co.za PY - 2012 SM - 0921-4526 T1 - Concentration effect of Tm3+ on cathodoluminescence properties of SiO2: Tm3+ and SiO2:Ho3+, Tm3+ systems TI - Concentration effect of Tm3+ on cathodoluminescence properties of SiO2: Tm3+ and SiO2:Ho3+, Tm3+ systems UR - http://hdl.handle.net/10204/9933 ER -