Abstract Stability of hydrogen in diamond-like carbon (DLC) film under simulated space environment, i.e., hyperthermal atomic oxygen, vacuum ultraviolet (VUV) and soft X-ray exposures has been studied. Hydrogen in DLC was released by exposure to low-energy atomic oxygen beam, whereas the gasification reaction of carbon atom needed collision energy above 3 eV. The desorption process in the deep region required a higher collision energy. The density of hydrogen decreased 11% by atomic oxygen exposure, and was independent of the collision energy. Photon exposure also releases hydrogen from DLC. High-energy photons in soft x-ray promote the hydrogen desorption even from deeper region with high efficiency. It was considered that soft x-ray could release bonded hydrogen which is not released by VUV or atomic oxygen exposures.


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    Titel :

    Hydrogen Removal from Hydrogenated Diamond-Like Carbon Films by Exposure to Photon and Energetic Atomic Oxygen Beams


    Beteiligte:
    Yokota, Kumiko (Autor:in) / Tagawa, Masahito (Autor:in) / Matsumoto, Koji (Autor:in) / Furuyama, Yuichi (Autor:in) / Kitamura, Akira (Autor:in) / Kanda, Kazuhiro (Autor:in) / Tode, Mayumi (Autor:in) / Yoshigoe, Akitaka (Autor:in) / Teraoka, Yuden (Autor:in)


    Ausgabe :

    2013


    Erscheinungsdatum :

    2012-06-04


    Format / Umfang :

    9 pages





    Medientyp :

    Aufsatz/Kapitel (Buch)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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