# MgO의 전자선 증착율에 따른 PDP 방전 특성 분석

• 김용재 (경원대학교 전자정보통신공학부) ;
• 권상직 (경원대학교 전자정보통신공학부)
• Published : 2007.08.01

#### Abstract

The effects of the evaporation rate of MgO films using an electron beam on the MgO properties and the discharge characteristics of a plasma display panel (PDP) were investigated and analyzed. MgO films were deposited with the various MgO evaporation rates. The MgO properties such as the crystal orientation, the surface roughness, and the film structure were inspected using XRD (X-ray diffraction), AFM (atomic force microscopy). From the experiments and Paschen law, the maximum value of the secondary electron emission coefficient $({\gamma})$ was obtained at the evaporation rate of $5{\AA}/sec$. The XRD results and cathode-luminescence (CL) spectra show the ${\gamma}$ values are correlated with F/F+ centers of the molecular structure of MgO films. The minimum firing voltage and the maximum luminous efficiency were obtained at an evaporation rate of $5{\AA}/sec$. In the MgO film deposited at $5{\AA}/sec$, the (200) orientation and F+ center were most intensive.

#### References

1. S. J. Kwon and C. K. J, 'Dependence of the discharge characteristics and efficacy on the base vacuum level for a high-efficiency PDP', J. Korean Phys. Soc., Vol. 47, No. 2, p. 371, 2005
2. B. K. Joung, J. S. Kim, S. O. Kwon, K. O. Song, and H. J. Hwang, 'A study of the discharge characteristics of a new penning gas in ac-PDPs', J. Korean Phys. Soc., Vol. 49, No. 3, p. 1287, 2006
3. C. H. Park, J. Y. Choi, M. S. Choi, Y. K. Kim, and H. J. Lee, 'Effects of MgO thin film thickness and deposition rate on the lifetime of ac plasma display panel', Surface & Coationgs Technology 197, p. 223, 2005 https://doi.org/10.1016/j.surfcoat.2004.11.039
4. J. P. Boeuf, 'Plasma display panels: physics, recent developments and key issues', J. Phys. D: Appl. Phys., Vol. 36, p. R53, 2003
5. H. D. Hagstrum, 'Theory of Auger ejection of electrons from metals by ions', Phys. Rev., Vol. 96, No. 2, p. 336, 1954
6. V. I. Avdeev and G. M. Zhidomirov, 'Electronic structure and optical properties of the surface F-centers in MgO: A theoretical analysis by DFT approach', Journal of Structural Chemistry., Vol. 44, No. 6, p. 918, 2003 https://doi.org/10.1023/B:JORY.0000034796.26087.1d
7. R. I. Eglitis, M. M. Kuklja, E. A. Kotomin, A. Stashans, and A. I. Popov, 'Semi-empirical simulations of the electron centers in MgO crystal', Comp. Mate. Sci., Vol. 5, No. 4, p. 298, 1996 https://doi.org/10.1016/0927-0256(95)00046-1