Transactions on Electrical and Electronic Materials

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Luminance Characteristics of a Novel Red-Light-Emitting Device Based on Znq2 and Dye

  • Cho, min-Jeong (Department of Electrical Engineering, Chungbuk nat′l University) ;
  • Park, Wan-Ji (Department of Electrical Engineering, Chungbuk nat′l University) ;
  • Lee, Jeong-Gu (Department of Electrical Engineering, Chungbuk nat′l University) ;
  • Lim, In-Su (Department of Electrical Engineering, Chungbuk nat′l University) ;
  • Lim, Kee-Joe (Department of Electrical Engineering, Chungbuk nat′l University) ;
  • Kim, Hyun-Hoo (Electronic Department., Doowon Technical College)
  • Published : 2002.06.01
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Abstract

In this study, a novel red emitting organic electroluminescent (EL) device was fabricated with the bis(8-oxyquinolino)zinc II (Znq2) doped dye as an emitting layer. The Znq2 was synthesized successfully from zinc chloride (ZnC1$_2$) as an initial material. Then, we fabricated the red organic EL device with a dye (DCJTB) doped and inserted Znq2 between emission layer and cathode for increasing EL efficiency. The hole transporting layer is a N,N'-diphenyl-N,N'-bis-(3-methylphenyl)-1,1'-diphenyl-4,4-diamine (TPD), and the host material of emission layer is Znq2. And the electrical and luminance characteristics of the device were measured. We found that the EL device with Znq2 inserting layer results in the increasing luminance efficiency.

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References

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