Electrochemical formation and optical properties of porous gallium phosphideстатья
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Аннотация:The mechanisms of porous gallium phosphide (por-GaP) formation in an electrochemical anodizing reaction in hydrofluoric acid based solution are studied. Scanning electron microscopy data show a microporous structure of por-GaP. The Raman scattering and photoluminescence spectra are investigated as a function of the anodizing current density. It is found that the edge luminescence and Raman scattering become stronger and the phonon spectrum changes in por-GaP. These changes are attributed to spatial confinement in the submicron elements of the porous structure. (C) 1996 American Institute of Physics.