Journal of Nanomaterials & Molecular NanotechnologyISSN: 2324-8777

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Sharon Kiprotich Author

KiprotichS@ufs.ac.za 27612113891 | 27612113891

Subjects of specialization
Quantum Dots, Nanoparticle Preparation, Optoelectronics, Semiconductor Physics, Quantum mechanics

Affiliation
Department of Physics, University of the Free State, (QwaQwa campus), Private Bag X-13, Phuthaditjhaba, 9866, South Africa

Biography

Structural and optical properties of novel CdSe nanoparticles produced via a facile synthetic route: Studies on the effects of cadmium sources is one of the main research works of Sharon Kiprotich.

Publications

Research Article Subscription

Effect of Tellurium Concentration of the Solution on the Structural, Optical and Luminescence Properties of Cadmium Telluride Nanoparticles

Author(s):

Sharon Kiprotich, Martin O. Onani, Muzi O. Ndwandwe and Francis B. Dejene

Water-soluble cadmium telluride (CdTe) nanoparticles (NPs) were prepared using L-cystine as a capping agent. The reaction was carried out under basic conditions (at pH=11) and refluxed at 100ºC for 1 h. In this work, different tellurium (Te) concentrations in the solution of L-cystine functionalized CdTe NPs were prepared at low temperature of 100ºC and discussion of its effect was done in detail. The CdTe NPs were analyzed using X-ray diffraction (XRD), ultraviolet-vis and photoluminescence (PL) spectroscopy. Structural parameters estimated by XRD revealed cubic phase of CdTe at lower Te concentrations and hexagonal phase of Te emerging at higher Te concentration. XRD results showed that the NPs consisted of small CdTe nanocrystallites, 3.1-4.5 nm... view more»

DOI: 10.4172/2324-8777.1000245

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