Electron-beam-evaporated nickel oxide films were shown to have a microcrystalline cubic nickel oxide structure. The pressure in the chamber during the film deposition has a large effect on the crystal size and the stoichiometry of the films. The redox currents, the efficiency of these films to color, and their optical properties were influenced by the processing conditions employed and the resulting microstructure. A model is proposed based on the observed microstructure that explains the source of overstoichiometric oxygen and ion transport in these films.
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Atilim Univ, Dept Elect & Elect Engn, TR-06836 Ankara, TurkeyAtilim Univ, Dept Elect & Elect Engn, TR-06836 Ankara, Turkey
Gullu, H. H.
Isik, M.
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Atilim Univ, Dept Elect & Elect Engn, TR-06836 Ankara, TurkeyAtilim Univ, Dept Elect & Elect Engn, TR-06836 Ankara, Turkey
Isik, M.
Gasanly, N. M.
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Middle East Tech Univ, Dept Phys, TR-06800 Ankara, TurkeyAtilim Univ, Dept Elect & Elect Engn, TR-06836 Ankara, Turkey
Gasanly, N. M.
Parlak, M.
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Middle East Tech Univ, Dept Phys, TR-06800 Ankara, Turkey
Middle East Tech Univ, Ctr Solar Energy Res & Applicat GUNAM, TR-06800 Ankara, TurkeyAtilim Univ, Dept Elect & Elect Engn, TR-06836 Ankara, Turkey