Characterization of Porous Anodic Aluminum Oxide Films by Luminescence Methods - A Review
This review is a summary of applications of photoluminescence and galvanoluminescence
techniques used to determine important characteristics of the porous anodic aluminum oxide films.
Both photoluminescence and galvanoluminescence of porous anodic oxide films formed on highly reflective
aluminum surfaces in either organic or inorganic electrolytes feature clearly pronounced interference
maxima that can be used as a tool for determining oxide film thickness and inherent optical parameters.
Following this finding, two methods (based on a particular observation angle) for determining
such properties are developed and presented. Developed methods can be used for either galvanoluminescence
or photoluminescence measurements, however only galvanoluminescence technique can
be used to estimate the thickness of porous oxide films on aluminum during the anodization.
Keywords: Aluminum, alumina, anodization, galvanoluminescence, photoluminescence, porous anodic aluminum oxide film.
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