Active and Passive Electronic Components

Active and Passive Electronic Components / 1976 / Article

Open Access

Volume 3 |Article ID 394515 | 5 pages |

Photoluminescence of Anodic Oxide Films on Aluminium

Received05 Jan 1976
Accepted05 May 1976


A wide variety of anodic oxide films were investigated from the photoluminescent point of view. It was found that the phenomenon of photoluminescence appears only on the films anodically formed in organic acids instead of inorganic acids. In particular, thick oxalic acid films formed in low electrolyte concentration, with high current densities on high purity aluminium, gave intense photoluminescence. The luminescent centres were presumed to be the carboxylate ions which had been incorporated in the films during anodisation.

Copyright © 1976 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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