Effect of surface potential of anodic alumina film on their charge properties
https://doi.org/10.35596/1729-7648-2019-123-5-72-78
Abstract
The surface potential of anodic alumina films and their charge properties have been studied. The surface potential of anodic alumina films after anodic process has positive values, but then this potential is decreased to zero level with subsequent transition to negative values. The negative displacement of the surface potential is associated with a negative built-in electric charge of aluminum anodic oxide. The mechanism of transition from the positive built-in electric charge to the negative one inside the anodic oxides is proposed. The highest density of the negative charge is observed in the films formed in electrolytes based on the aqueous solutions of the citric and phosphoric acids.
About the Authors
Le Dinh Vi
Belarusian state university of informatics and radioelectronics
Belarus
Belarus
PG student of micro- and nanoelectronics department.
220013, Minsk, P. Brovka st., 6
O. V. Kupreeva
Belarusian state university of informatics and radioelectronics
Belarus
Belarus
Researcher of SRL 4.12 of R&D department.
220013, Minsk, P. Brovka st., 6
V. V. Dudich
Belarusian state university of informatics and radioelectronics
Belarus
Belarus
Master student of micro- and nanoelectronics department.
220013, Minsk, P. Brovka st., 6
V. A. Filipenya
Scientific and technical center «BMA» of branch «Belmicrosystems», OJSC Integral
Belarus
Leading engineer
Belarus
Leading engineer
S. K. Lazarouk
Belarusian state university of informatics and radioelectronics
Belarus
Belarus
D.Sci, professor, head of SRL 4.12 of R&D department.
220013, Minsk, P. Brovka st., 6
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Review
For citations:
Vi L., Kupreeva O.V., Dudich V.V., Filipenya V.A., Lazarouk S.K. Effect of surface potential of anodic alumina film on their charge properties. Doklady BGUIR. 2019;(5):72-78. (In Russ.) https://doi.org/10.35596/1729-7648-2019-123-5-72-78
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