New Complex Defect in Heavily Doped GaAs:Zn Grown by Liquid Phase Epitaxy
Abstract
The photoluminescence properties of heavily doped GaAs:Zn (100) layers grown by liquid phase epitaxy from gallium and bismuth solutions at various temperatures have been studied. It was shown that a line at 1.35 eV connected with the novel defect appears in photoluminescence spectra of the layers doped at a level above 1019 cm−3. It has been found that the defect is a neutral complex consisting of native point defects of GaAs.