Low Temperature Epitaxial Growth of Highly-Conductive ZnSe Layers in Mixed Plasma of Hydrogen and Hydrogen Chloride

Abstract
Highly conductive ZnSe layers with resistivitv of 10-3 Ω·cm (electron density: 2.8×1019 cm-3, Hall mobility: 140 cm2/Vs) have been grown on (100)GaAs by plasma-assisted epitaxy at 318°C in a mixed plasma of hydrogen and HCl. However, photoluminescent measurements suggest that excessive doping above 1019 cm-3 reduce the conductivity from its maximum value by inducing complex defects.