7-11 July 2014
Africa/Johannesburg timezone
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Computational modelling studies of Pd tellurides

Presented by Mr. Phatholo Fredy SELOWA on 9 Jul 2014 from 17:10 to 19:00
Type: Poster Presentation
Session: Poster2
Track: Track A - Division for Physics of Condensed Matter and Materials
Board #: A.106

Abstract

Telluride minerals are minor or trace components in ore deposits from a wide variety of geological environments. They are also important carriers of precious metals, especially of Pt, Pd, Au and Ag. In nature, tellurides of palladium are most widely spread. Metal tellurides are applicable mainly in optical devices such as solar cells, but also in thermoelectrical devices. Density functional theory study is used to investigate structural stability in terms of heats of formation, elastic constants and phonon dispersion for the PdTe, PdTe<sub>2</sub> and Pd<sub>3</sub> Te<sub>2</sub> structures. In order to investigate the mechanical stability, we evaluated their phonon dispersion curves along symmetry direction within the first Brillouin zones. The elastic properties of the PdTe, PdTe<sub>2</sub>, and Pd<sub>3</sub>, Te<sub>2</sub> satisfied all necessary conditions for mechanical stability. Thus, all the systems are predicted to be mechanically stable.

Award

yes

Level

Hons

Supervisor

Prof. P.E Ngoepe phuti.ngoepe@ul.ac.za university of limpopo

Paper

no

Place

Room: D Ring ground level


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