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Open Air Fabrication of Al2O3 Thin Films at Room Temperature

Published online by Cambridge University Press:  10 February 2011

T. Okamoto
Affiliation:
Faculty of Electrical Engineering, Tokai University 1117 Kitakaname, Hiratsuka, Kanagawa, 259–12, JAPAN
K. Toyoda
Affiliation:
Applied Electronics, Science University of Tokyo 2641 Yamazaki, Noda, Chiba, 278, JAPAN
M. Murahara
Affiliation:
Faculty of Electrical Engineering, Tokai University 1117 Kitakaname, Hiratsuka, Kanagawa, 259–12, JAPAN
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Abstract

A thin layer of water or hydrogen peroxide solution, which was formed on a pure aluminum substrate, was photodissociated by ArF excimer laser( λ =193nm) or Xe2* excimer lamp (λ = 172nm) light to photochemically oxidize the surface of aluminum substrate. The layer was formed by a capillary phenomenon between the substrate and a fused silica glass as an entrance window of ultraviolet light. Then, the layer was photodissociated by the excimer laser or the excimer lamp light irradiation to generate active oxygen; the surface oxidization was performed by the photo-induced active oxygen. The surface before and after modification was evaluated by the XPS analysis; the high densed photo-oxidization film was confirmed on the modified surface, compared with a natural oxidization film Furthermore, the contact angle with water became remarkably small, and it is seen that the treated surface was quite densely oxidized.

Type
Research Article
Copyright
Copyright © Materials Research Society 1997

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References

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