Reduced angular dependence of the emission from tris(8-hydroxyquinoline) aluminum based microcavity

C. H. Cheung, A. B. Djurišić*, C. Y. Kwong, Hoi Lam TAM, Kok Wai CHEAH, Z. T. Liu, W. K. Chan, P. C. Chui, J. Chan, A. D. Rakić

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Organic microcavity light emitting diodes typically exhibit a significant blue shift of the emission wavelength with the viewing angle. In this work, we demonstrate significant reduction of the emission angular dependence of a microcavity device consisting of two organic layers, N,N′-di(naphthalene- 1-yl)-N,N′-diphenylbenzidine (NPB) as a hole transport layer and tris(8-hydroxyquinoline) (Alq) as emitting layer, between two metal mirrors. The reduction of the angular dependence of the emission was achieved by optimizing the thickness of the layers within the device. The reasons for the reduced emission wavelength shift with the viewing angle are discussed.

Original languageEnglish
Pages (from-to)287-293
Number of pages7
JournalOptics Communications
Volume248
Issue number1-3
DOIs
Publication statusPublished - 1 Apr 2005

Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Physical and Theoretical Chemistry
  • Electrical and Electronic Engineering

User-Defined Keywords

  • Organic microcavity light emitting diodes

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