Ultraviolet laser-induced low-temperature epitaxy of GaP

Abstract
An ArF excimer laser has been used to achieve homoepitaxy of GaP at 500 °C using trimethylgallium and tertiarybutylphosphine as the precursor gases. Dependence of epitaxial growth on several parameters is examined. It is found that at 500 °C, in the presence of laser radiation, higher growth rate and superior crystalline properties of GaP are achieved compared to purely thermal growth. Electrical properties of p-n diodes fabricated via Zn doping have also been examined.