Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A Study on Powder Electroluminescent Device through Structure and Thickness Variation

구조 및 두께 변화에 따른 후막 전계발광 소자에 관한 연구

  • Han, Sang-Mu (School of Electrical and Electronic Engineering, Wonkwang University) ;
  • Lee, Jong-Chan (School of Electrical and Electronic Engineering, Wonkwang University) ;
  • Park, Dae-Hee (School of Electrical and Electronic Engineering, Wonkwang University)
  • 한상무 (원광대학교 전기전자공학부) ;
  • 이종찬 (원광대학교 전기전자공학부) ;
  • 박대회 (원광대학교 전기전자공학부)
  • Published : 1998.07.20
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Abstract

Powder electroluminescent device (PELD) structured conventionally dielectric and phosphor layer, between electrode and their layer fabricated by screen printing splaying or spin coating method. To promote performance of PELDs, we approached the experiments for different structure and thickness variation of PELD. Thickness variation($30{\mu}m{\sim}130{\mu}m$) was taken. To investigate electrical and optical properties of PELDs, EL spectrum, transferred charge density using Sawyer-Tower's circuit brightness was measured. Variation of structure in PELDs was as follows: WK-1 (ITO/BaTiO3/ZnS:Cu/Silver paste), WK-2 (ITO/BaTiO3/ZnS:Cu/BaTiO3/ZnS:Silver paste), WK-3 (ITO/BaTiO3/ZnS:Cu/BaTiO3/Silver paste), WK-4(ITO/BaTiO3+ZnS:Cu/Silver paste) As a result, structure of the highest brightness appeared WK-4 possessed 60 ${\mu}m$ thickness. The brightness was 2719 cd/$m^2$ at 100V, 400Hz.

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