AVS 55th International Symposium & Exhibition
    Thin Film Thursday Sessions
       Session TF-ThP

Paper TF-ThP15
In Situ Spectroscopic Ellipsometry Studies of the Oxidation of Nickel Thin Films

Thursday, October 23, 2008, 6:00 pm, Room Hall D

Session: Aspects of Thin Films
Presenter: J. Rhim, Hanyang University, South Korea
Authors: J. Rhim, Hanyang University, South Korea
S. Lee, Hanyang University, South Korea
H. Jeong, Hanyang University, South Korea
D. Kim, Ewha Womans University, South Korea
I. An, Hanyang University, South Korea
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Nickel oxide film is an attractive material for electrochromic devices as well as resistance random access memory devices. In this work, e-beam evaporated nickel films are thermally oxidized in oxygen ambient at various temperatures. In situ spectroscopic ellipsometry is employed to study the oxidation process of nickel films. The optical and microstructural properties of nickel oxide films are deduced and these are compared with the electrical properties. When the nickel film is not fully oxidized, the optical properties of nickel oxide show the inclusion of nickel element. This film shows low resistivity and poor switching characteristics.