한국정보디스플레이학회:학술대회논문집

The Korean Infomation Display Society (한국정보디스플레이학회)
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Measurement of Energy bands of the MgO Layer in AC-PDPs

  • Jeoung, S.J. (Charged Particle Beam & Plasma Lab. PDP Research Center Department of Electro physics, Kwangwoon University) ;
  • Lee, H.J. (Samsung SDI) ;
  • Son, C.G. (Charged Particle Beam & Plasma Lab. PDP Research Center Department of Electro physics, Kwangwoon University) ;
  • Kim, J.H. (Charged Particle Beam & Plasma Lab. PDP Research Center Department of Electro physics, Kwangwoon University) ;
  • Park, E.Y. (Charged Particle Beam & Plasma Lab. PDP Research Center Department of Electro physics, Kwangwoon University) ;
  • Hong, Y.J. (Charged Particle Beam & Plasma Lab. PDP Research Center Department of Electro physics, Kwangwoon University) ;
  • You, N.L. (Charged Particle Beam & Plasma Lab. PDP Research Center Department of Electro physics, Kwangwoon University) ;
  • Lee, S.B. (Charged Particle Beam & Plasma Lab. PDP Research Center Department of Electro physics, Kwangwoon University) ;
  • Han, Y.G. (Charged Particle Beam & Plasma Lab. PDP Research Center Department of Electro physics, Kwangwoon University) ;
  • Jeoung, S.H. (Charged Particle Beam & Plasma Lab. PDP Research Center Department of Electro physics, Kwangwoon University) ;
  • Song, K.B. (Charged Particle Beam & Plasma Lab. PDP Research Center Department of Electro physics, Kwangwoon University) ;
  • Moon, M.W. (Charged Particle Beam & Plasma Lab. PDP Research Center Department of Electro physics, Kwangwoon University) ;
  • Oh, P.Y. (Charged Particle Beam & Plasma Lab. PDP Research Center Department of Electro physics, Kwangwoon University) ;
  • Choi, E.H. (Charged Particle Beam & Plasma Lab. PDP Research Center Department of Electro physics, Kwangwoon University)
  • Published : 2006.08.22
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Abstract

The secondary electron emission coefficient $({\gamma})$ of the cathode is an important factor for improving the discharge characteristics of AC-PDPs because of its close relationship to discharge voltage. In AC-PDPs, MgO is most widely used as a surface protective layer. In this experimental, we have investigated the electronic structure of the energy band structure of the MgO layer responsible for the high ${\gamma}$. The MgO layers have been deposited by electron beam evaporation method, where the $O_2$ partial pressures have been varied as 0, $5.2{\times}10^{-5}$ torr, $1.0{\times}10^{-4}$ torr, and $4.1{\times}10^{-4}$ torr, in this experiment. It is noted that work function that is energy gap between surface and first defect level of MgO layer has the lowest value for the highest O2 partial pressure of $4.1^{\ast}10^{-4}$ Torr.

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