Morphology and photoluminescence of nano-porous anodic alumina membranes obtained in oxalic acid at different anodization potentials
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Date
2020
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Physics
Abstract
Porous Anodic alumina (PAA) with highly ordered pore geometry serves as an ideal template for future development of nanodevices. In the present work, PAA was prepared by varying anodization potential from 10 to 50 V in oxalic acid at 8 °C with a constant electrolyte concentration of 0.3 M. The influence of anodization potential on the structural and photoluminescence (PL) properties of PAA has been studied. The effect of anodization potential on the main pore characteristics of PAA such as pore diameter, interpore distance, pore density, porosity and circularity was studied. It was observed that circularity of PAA was nearly equal to one in the case of anodization potential of 40 V. Highest regularity ratio (RR) obtained for PAA formed in 40 V and it was calculated by WSxM software. It was noticed that with increasing anodization potential there is a slight change in PL spectra of PAA and shows a strong PL peak in blue region. © 2020 The Author(s). Published by IOP Publishing Ltd
Description
Keywords
Alumina, Aluminum oxide, Aluminum sheet, Anodic oxidation, Electrolytes, Morphology, Oxalic acid, Anodization potential, Anodizations, Circularity, Highly ordered pores, Nano-porous, Pore diameters, Pore geometry, Porous anodic alumina, Porous anodic alumina membranes, Regularity ratio, Photoluminescence
Citation
Nano Express, 2020, 1, 1, pp. -