Mlowe, Sixberth; Pullabhotla, Rajasekhar; Mubofu, Egid B.; Ngassapa, Faustine; Revaprasadu, Neerish
Description:
We report the low temperature synthesis of
CdE (E = S, Se and Te) semiconductor nanoparticles
capped by anacardic acid, an environmentally benign naturally
occurring capping ligand. The cadmium chalcogenide
nanoparticles were synthesized by reacting the reduced
chalcogen powder with cadmium chloride to form the
corresponding bulk material which was then dispersed in
tri-n-octylphosphine (TOP) and thermolysed in anacardic
acid. The low temperature of the reaction and the use of a
naturally occurring oil solvent make this a relatively green
synthetic route. The optical properties of the anacardicacid-capped
cadmium chalcogenide particles show evidence
of quantum confinement. The particles were characterized
by X-ray diffraction and electron microscopy
techniques.