Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Preparation and characterization of $Alq_3$/TPD EL devices

$Alq_3$/TPD EL소자의 제작과 그 특성에 관한 연구

  • Chai, Su-Gil (School of Electronic & Electrical Eng., Hongik University) ;
  • Kim, Tae-Wan (Dept. of Physics., Hongik University) ;
  • Kang, Dou-Yol (School of Electronic & Electrical Eng., Hongik University)
  • 채수길 (홍익대학교 전기.제어공학과) ;
  • 김태완 (홍익대학교 물리학과) ;
  • 강도열 (홍익대학교 전기.제어공학과)
  • Published : 1997.07.21
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Abstract

In this study, Organic electroluminescent(EU devices with multilayer structures were fabricated using tris (8-hydroxy quinolinate) aluminum($Alq_3$) as an electron-tran sporting emitting layer and TPD(N,N'-diphenyl-N,N'-bis(3-methylphenyl)-[1,1'-biphenyl]-4,4'-diamine : aromatic diamine) as a hole-transporting layer. A cell with a structure of glass substrate/indium-tin-oxide(ITO)/$Alq_3$/TPD/Mg:In exhibited bright green electroluminescence from the TPD layer. The peak intensity of TPD and $Alq_3$ different from spin coating and vacuum evaporation. The peak emission energy shifts to a higher energy with deposition technique. An emission peak at 500nm was achieved at a driving voltage of 30V.

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