Photoluminescence emission from Alq3 organic layer in metal-Alq3-metal plasmonic structure

Bohr Ran Huang, Chung Chi Liao, Wan Ting Fan, Jin Han Wu, Cheng Chang Chen, Yi Ping Lin, Jung Yu Li, Shih Pu Chen, Wen Cheng Ke, Nai Chuan Chen*

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

4 Scopus citations


The emission properties of an organic layer embedded in a metal-organic-metal (MOM) structure were investigated. A partially radiative odd-SPW as well as a non-radiative even-SPW modes are supported by hybridization of the SPW modes on the opposite organic/metal interface in the structure. Because of the competition by this radiative SPW, the population of excitons that recombine to form non-radiative SPW should be reduced. This may account for why the photoluminescence intensity of the MOM sample is higher than that of an organic-metal sample even though the MOM sample has an additional metal layer that should intuitively act as a filter.

Original languageEnglish
Pages (from-to)319-323
Number of pages5
JournalApplied Surface Science
StatePublished - 01 06 2014


  • Dispersion relation
  • Light extraction efficiency
  • Metal-insulator-metal (MIM)
  • Surface plasmon polarition (SPP)


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