Features of the Transformation of the Exciton Cathodoluminescence Spectra of CdSe Epitaxial Layers with Increasing Excitation Level

摘要

Features of the transformation of the cathodoluminescence spectra of CdSe epitaxial layers with increasing excitation level are studied. It is shown that the spectra at 78 K exhibit the following transformation as the excitation-current density increases: (A-exciton line)–(non-degenerate electron–hole plasma bands)–(degenerate electron–hole plasma bands).