Journal of the Korean Applied Science and Technology (한국응용과학기술학회지)

The Korean Society of Applied Science and Technology (한국응용과학기술학회)
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Electroluminescence Properties of Simple Anthracene Derivatives Containing Phenyl or Naphthyl Group at 9,10-position for the Blue OLED

  • Kim, Si Hyun (Department of Chemical System Engineering, Hongik University) ;
  • Lee, Song Eun (Department of Chemical System Engineering, Hongik University) ;
  • Kim, Yong Kwan (Department of Chemical System Engineering, Hongik University) ;
  • Lee, Seung Hee (Department of Chemical System Engineering, Hongik University)
  • Received : 2017.07.28
  • Accepted : 2017.09.07
  • Published : 2017.09.30
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Abstract

The organic light-emitting diodes are fabricated with six anthracene derivatives containing simple substituents such as phenyl or naphthyl group. The device structure is as in the following: Indium tin oxide (ITO) (180 nm)/4,4-4,4',4"-tris[N-(1-naphthyl)-N-phenylamino]triphenylamine (2-TNATA) (30 nm)/4,4'-bis[N-(1-naphthyl)-N-phenyl-1-amino] biphenyl (NPB) (20 nm)/Emitting compound (30 nm)/2,2',2"-(1,3,5-Benzinetriyl)-tris (1-phenyl-1-H-benz-imidazole) TPBi (40 nm)/lithium quinolate (Liq) (2 nm)/Al (100 nm). In the emitting layer the anthracene derivatives are used without any dopant. All the six devices show blue emissions. Among the tested diodes, the one with 9-(2-naphthyl)-10-(p-tolyl) anthracene (2-NTA) exhibited luminous efficiency, power and external quantum efficiencies of 3.26 cd/A, 0.98 lm/A, 2.8 % at $20mA/cm^2$.

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References

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