The effect of oxalic and sulfuric ions on the photoluminescence of anodic aluminum oxide formed in a mixture of sulfuric and oxalic acid |
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| Authors: | Jian Wang Cheng-Wei Wang Shou-Yi Li and Feng Zhou |
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| Institution: | (1) College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou, 730070, China;(2) State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, China |
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| Abstract: | Anodic aluminum oxide (AAO) films with highly ordered pore arrays were prepared in sulfuric, oxalic acids and their mixture
solutions, respectively. The photoluminescence (PL) measurements show that AAO films formed in the mixture electrolytes have
PL bands in the wavelength range of 300–450 nm, which mainly arise from the oxalic impurities incorporated into AAO films.
However, the sulfuric ions have a strong effect on the PL bands. With the increase of the concentration of sulfuric ions in
the mixture electrolyte, the blueshift of the PL bands occurs from 410 to 345 nm. The reasons of the results are being discussed. |
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| Keywords: | PACS" target="_blank">PACS 78 55 Mb 78 66 Jg 81 05 Rm 78 55 Qr 81 05 Gc |
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