Modification of polymer light emission by lateral microstructure

AN Safonov, M Jory, BJ Matterson, JM Lupton, MG Salt, JA Wasey, WL Barnes, Ifor David William Samuel

Research output: Contribution to journalArticlepeer-review

18 Citations (Scopus)

Abstract

We report the use of wavelength-scale microstructure to control the intensity, spectrum and polarisation of light-emission from thin polymer films. It is shown that periodic corrugation of the emissive layer can substantially increase the efficiency of light-emission. Detailed photoluminescence (PL) studies of the angle dependence of the emission together with theoretical modelling show that the observed emission enhancement is associated with Bragg-scattering of waveguided light out of the polymer layer. The application of this approach to increase the efficiency of a light-emitting diode (LED) is demonstrated. (C) 2001 Published by Elsevier Science B.V.

Original languageEnglish
Pages (from-to)145
Number of pages145
JournalSynthetic Metals
Volume116
Publication statusPublished - 15 Jan 2001

Keywords

  • light sources
  • polymer LED
  • photoluminescence
  • quantum optics
  • waveguides
  • EXTERNAL QUANTUM EFFICIENCY
  • EMITTING-DIODES
  • MICROCAVITY
  • FILMS

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