Color-tunable mixed photoluminescence emission from Alq3 organic layer in metal-Alq3-metal surface plasmon structure

Nai Chuan Chen*, Chung Chi Liao, Cheng Chang Chen, Wan Ting Fan, Jin Han Wu, Jung Yu Li, Shih Pu Chen, Bohr Ran Huang, Li Ling Lee

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

5 Scopus citations

Abstract

This work reports the color-tunable mixed photoluminescence (PL) emission from an Alq3 organic layer in an Au-Alq3-Au plasmonic structure through the combination of organic fluorescence emission and another form of emission that is enabled by the surface plasmons in the plasmonic structure. The emission wavelength of the latter depends on the Alq3 thickness and can be tuned within the Alq3 fluorescent spectra. Therefore, a two-color broadband, color-tunable mixed PL structure was obtained. Obvious changes in the Commission Internationale d’Eclairage (CIE) coordinates and the corresponding emission colors of Au-Alq3-Au samples clearly varied with the Alq3 thickness (90, 130, and 156 nm).

Original languageEnglish
Article number569
JournalNanoscale Research Letters
Volume9
Issue number1
DOIs
StatePublished - 2014

Bibliographical note

Publisher Copyright:
© 2014, Chen et al.; licensee Springer.

Keywords

  • Organic light-emitting
  • Photoluminescence
  • Surface plasmon polariton
  • White light

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