Wednesday, July 9, 2014

Abstract. Cheyenne Simmons

Synthesis and Characterization of Quaternary Diamond-Like Semiconductors
Simmons,Cheyenne L.; Aitken, Jennifer A.; Brant, Jacilynn A.
Department of Chemistry and Biochemistry
Duquesne University

The class of diamond-like semiconductors (DLSs)with the general formula I2-II-IV-VI4 is attractive for applications in nonlinear optics, solid state electrolytes, and photovoltaics. These materials exhibit compositional flexibility ,where various elements can be employed to tune the physical properties. Accessing these DLSs as nanophases can further impact properties, for example band gap. Most thin film solar cell materials are made from nanoparticle precursors. The synthesis and characterization of novel quaternary DLSs nanparticles is targeted in this project. The materials are structurally characterized using X-ray powder diffraction (XRPD), morphology and elemental analysis are carried out using scanning electron microscopy coupled with energy dispersive spectroscopy and band gaps' are assessed using UV-Vis-NIR spectroscopy.

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