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Study of the characteristics of Secondary Electron Emission from MgO Layer for Low-Energy Noble Ions  

이상국 (서울대학교 공과대학 전기공학부)
김재홍 (서울대학교 공과대학 응용화학부)
이지화 (서울대학교 공과대학 응용화학부)
황기웅 (서울대학교 공과대학 전기공학부)
Publication Information
Journal of the Korean Vacuum Society / v.11, no.2, 2002 , pp. 108-112 More about this Journal
Abstract
We investigated the secondary electron emission characteristics of MgO layer used as the protecting material in a.c. plasma display panel(a.c.-PDPs) using a pulsed ion beam technique, where the surface charging can be effectively suppressed during the measurement. The measurement of the secondary electron emission coefficients ($\gamma$) on the surface of $SiO_2$ was carried out and then, it was found that the yields were dependent on incident ion energies. In addition, it was clearly demonstrated that the sputtering on MgO surface leads to lower yields, which suggests that the surface plays a key role on the operating conditions, such as life time, fast response, and etc.
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