Abstract by Nathan Schwartz
Physics and Astronomy
Zinc Arsenide: Properties and Behavior in Thermal Evaporation
We seek to characterize zinc arsenide in both powdered and thermally evaporated form to determine its usefulness in creating stable p-type ZnO for use in optical and electrical devices. Through a thermal evaporation technique, we grow ZnAs films on glass, sapphire, and silicon nitride substrates. We then utilize ellipsometry to determine the thickness of our grown films. By video recording the deposition process, we hope to understand multiple properties of zinc arsenide including crystal structure and formation patterns. Thus far, our results have suggested polycrystalline growth, characterized by nucleation sites. We plan to further use these results to refine the growth process and consistently create ZnAs films useful for doping ZnO.