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Springer Science and Business Media LLC Micro and Nano Systems Letters 12(1)
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    초록·키워드

    Abstract In this paper, using high-dose implantation of O 2 + ions, nano-sized WO 3 films were obtained on the surface and at various depths of W(111) for the first time. It has been confirmed that when O 2 + ions are implanted into W at room temperature with low energy, partial formation of oxides such as WO, WO 2 , WO 3 and WO 4 occurs. It has been proved that in order to obtain a homogeneous and good stoichiometry of W oxide, it is necessary to carry out oxidation at a certain temperature. The optimal modes for obtaining hidden oxide layers in the near-surface region of tungsten, the substrate temperature W, the energy and dose of O 2 + ions were determined. The concentration profiles of distributed O atoms in depth were studied for the three-layer W-WO 3 -W(111) system. Using scanning electron microscopy, the formation depths and thicknesses of WO 3 layers were determined. The WO 3 films were polycrystalline. The resulting films have potential for creating thin-film OLED displays, as well as nanofilm MOS transistors.

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