Non-reflective black cathode in organic light-emitting diode

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • F. L. Wong
  • M. K. Fung
  • X. Jiang
  • C. S. Lee
  • S. T. Lee

Detail(s)

Original languageEnglish
Pages (from-to)143-146
Journal / PublicationThin Solid Films
Volume446
Issue number1
Publication statusPublished - 1 Jan 2004

Abstract

A black conductive electrode with a resistivity of 6.75 × 10 -4 Ω cm was fabricated by doping silicon monoxide into aluminum by simple thermal evaporation. The relative optical reflectance of such electrode layers within the visible spectral range was between 0.12 and 0.05. The black electrode was incorporated in an organic light-emitting diode (OLED) by sequential deposition of α-napthylphenylbiphenyl diamine, tris-(8-hydroxyquinoline) aluminum and the black layer on indium-tin-oxide-coated glass substrates. The black layer reduced the reflection of ambient light entering the device and resulted in a significant increase of the OLED display contrast ratio. The electroluminescence properties of the device incorporating the black layer were investigated. © 2003 Elsevier B.V. All rights reserved.

Research Area(s)

  • Ambient, Contrast, Optical properties

Citation Format(s)

Non-reflective black cathode in organic light-emitting diode. / Wong, F. L.; Fung, M. K.; Jiang, X.; Lee, C. S.; Lee, S. T.

In: Thin Solid Films, Vol. 446, No. 1, 01.01.2004, p. 143-146.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review