Makwena Justice Moloto
Vaal University of Technology, South Africa
Title: Sulfur based metal complexes for synthesis of semiconductor nanoparticles
Biography
Biography: Makwena Justice Moloto
Abstract
The thiol based ligands have been used extensively for thei use as sources of semiconductor nanopartcles using different methods. Some of those ligands include thiourea and derivatives, dithiocarbamates, thiurams, thiarams and others. These are generally reacted with various metals and most commonly cadmium, cobalt, copper, zinc to use the advantage of their bonding to the sulfide. The single source precursor route is normally the approach fllowed to explore the nanoparticles synthesis from these complexes. Higher temperatures are required to carryout such reactions and using high boiling point organic solvents such as hexadecylamine, trioctylphosphine, oleylamine to produce different mrophologies. The presentation will discuss some examples with more focus on thiourea based ligands as explored by the authors to discuss their properties and potential in various applications. Technqies to be explored include optical properties using absorption and fluorescence spectrometry, thermal studies using TGA, chemical structural interactions using FTIR spectrometry, determine phases of materials prepared using XRD, TEM for sizes and shapes of nanomaterials. An overview of some of those selected complexes on their synthesis and nanoparticles approach used will be discussed.
