PHOTOASSISTED DOPING OF NITROGEN INTO ZNSE USING ETHYL AZIDE

Use of ethyl azide as a dopant for nitrogen doping into ZnSe was proposed. Also attempted was photoexciting ethyl azide during metalorganic vapor phase epitaxial growth of nitrogen-doped ZnSe. Low temperature photoluminescence spectra of moderately doped samples were dominated by donor-acceptor pair emissions. Moreover, a substantial photoenhancement of an acceptor incorporation was indicated by the photoluminescence measurements. Supportive evidence of the photoenhancement of chemical reactivity of the ethyl azide molecules was obtained by an in situ optical reflection measurement. A possible mechanism of nitrogen incorporation into ZnSe is discussed. (C) 1994 American Institute of Physics.