Effect of vacuum ultraviolet exposure and surface oxide layer on the hydrogen desorption from hydrogenated diamond-like carbon films

Tagawa, Masahito*; Yokota, Kumiko*; Furuyama, Yuichi*; Kanda, Kazuhiro*; Tode, Mayumi; Yoshigoe, Akitaka ; Teraoka, Yuden

Effects of vacuum ultraviolet and surface oxide layer on the hydrogen desorption from hydrogenated diamond-like carbon (HDLC) films were investigated. We have used commercially available HDLC as a specimen, and synchrotron radiation at BL-6 in NewSUBARU or D $_{2}$ lamp as an external source of photon energy. SiO $_{2}$ and TiO $_{2}$ surface oxide films with a few nanometer thickness were formed by irradiation of hyperthermal atomic oxygen beams with a translational energy of approximately 5 eV onto metal-doped HDLCs in order to investigate the effect of oxide film on the hydrogen desorption. It was confirmed that the effect of SiO $_{2}$ and TiO $_{2}$ gave different influence on desorption temperature of hydrogen.

Language	:	English
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Meeting title	:	JAEA-Symposium on Synchrotron Radiation Research 2010; Material Science on Metal Hydride
Held date	:	2010/02
Location (city)	:	Sayo
Location (country)	:	Japan
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Keywords	:	no keyword
Research Facility	:	SPring-8(大型放射光施設)
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Cooperating Institute	:	神戸大学

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Registration No. : BB20093399
JAEA Abstracts No. :
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