Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Effects of ZrO2 Addition on Optical and Electrical Properties of MgO Films as a Protective Layer for AC PDPs

ZrO2 첨가에 따른 AC PDP 보호막용 MgO 박막의 광학적 전기적 특성

  • Kim, Chang-Il (Electronic Components & Materials Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Jung, Young-Hun (Electronic Components & Materials Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Lee, Young-Jin (Electronic Components & Materials Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Paik, Jong-Hoo (Electronic Components & Materials Division, Korea Institute of Ceramic Engineering and Technology) ;
  • Choi, Eun-Ha (Department of Electrophysics, Kwangwoon University) ;
  • Jung, Seok (R&D Department, Ceramics & Chemicals Technology Inc.) ;
  • Kim, Jeong-Seok (R&D Department, Ceramics & Chemicals Technology Inc.)
  • Published : 2008.08.31
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Abstract

The effects of an addition of $ZrO_2$ on the microstructure and electrical properties of MgO films as a protective layer for AC plasma display panels were investigated. MgO + a 200 ppm $ZrO_2$ protective layer prepared by e-beam evaporation exhibited a secondary electron emission coefficient ($\gamma$) that was improved by 21% compared to that of a pure MgO protective layer. The relative density and Vickers hardness increased with a further addition of $ZrO_2$. These results suggest that the discharge properties and optical properties of MgO protective layers are closely related to the relative density and Vickers hardness. The good optical and electrical properties of $\gamma$, at 0.080, a grain size of $19\;{\mu}m$ and an optical transmittance of 91.93 % were obtained for the MgO + 200 ppm $ZrO_2$ protective layer sintered at $1700^{\circ}C$ for 5 hrs.

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