Author:Mhlongo, Gugu H; Dhlamini, MS; Swart, HC; Ntwaeaborwa, OM; Hillie, KTDate:Aug 2011Y2O3:Eu3+ and ZnO·Y2O3:Eu3+ nanophosphor powders with different concentrations of Eu3+ ions were synthesized by a sol–gel method and their luminescence properties were investigated. The red photoluminescence (PL) from Eu3+ ions with the main ...Read more
Author:Mhlongo, Gugu H; Ntwaeaborwa, OM; Dhlamini, MS; Swart, HC; Hillie, KTDate:Feb 2011SiO2:Pr3+–Ce3+ phosphor powders were successfully prepared using a sol–gel process. The concentration of Pr3+ was fixed at 0.2 mol% while that of Ce3+ was varied in the range of 0.2–2 mol%. High resolution transmission electron microscopy ...Read more
Author:Moyo, D; Anadjiwala, RDate:01 Sep 2010Nonwoven fabrics are engineered assemblies of natural and man-made fibres bonded together mechanically, thermally, chemically or by a combination of these techniques. The nonwoven industry has a huge growth potential compared to weaving and ...Read more
Author:Smit, Jacoba E; Grobler, AF; Sparrow, RWDate:Apr 2011The most efficient light harvesting and energy transfer systems are found in nature as part of the photosynthesis process. In the photosynthetic system light energy is absorbed by antenna chlorophylls and this energy is then passed onto a ...Read more
Author:Sparrow, RWDate:27 Feb 2006The aim of this research is to develop a device that will move a rod in 8 nm controllable steps. The researchers are utilising the biological principles and materials of photosynthetic light (energy) harvesting and transfer, ATPsynthase, ATP ...Read more