Para-hexaphenylene (p-6P) nanofibers grown on a silver surface for polarization-insensitive surface plasmon polariton excitation

Elżbieta Karolina Sobolewska, Ayoub Laghrissi, Tomasz Kawalec, Leszek Jozefowski, Horst Günter Rubahn, Jost Adam, Jacek Fiutowski*

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Surface plasmon polariton excitation was demonstrated by fluorescent light from organic para-hexaphenylene (p-6P) nanofibers grown directly on a silver thin film surface. We show results of both photoluminescence lifetime measurements and angle-resolved leakage radiation spectroscopy in the excitation range 420–620 nm, which corresponds to the material photoluminescence band. The optical characteristics of randomly oriented p-6P nanofibers assembled directly on the metal surface are remarkably comparable to those of fibers grown on crystalline substrate surfaces. In addition, compared to mica-transferred fibers, the photoluminescence lifetime is longer. More importantly, they show polarization-insensitive plasmonic activity and are entirely consistent with theoretical predictions. Both analytical and numerical finite-difference time-domain simulations support the experimental data. Our findings open a new avenue for incorporating organic nanofibers into optoelectronic applications by directly depositing the p-6P material onto selected substrates. This direct deposition significantly reduces the deformation of the fiber structure and the impurity introduction, usually implied by the transfer process.

Original languageEnglish
Article number127995
JournalOptics Communications
Volume511
ISSN0030-4018
DOIs
Publication statusPublished - 15. May 2022

Bibliographical note

Funding Information:
Financial funding for this work was provided by the Fabrikant Mads Clausen’s Foundation . We are grateful to Till Leissner for fruitful discussions during analyzing experimental and numerical data.

Funding Information:
Financial funding for this work was provided by the Fabrikant Mads Clausen's Foundation. We are grateful to Till Leissner for fruitful discussions during analyzing experimental and numerical data.

Publisher Copyright:
© 2022 The Author(s)

Keywords

  • Leakage radiation spectroscopy
  • Organic nanofibers
  • Para-hexaphenylene (p-6P)
  • Surface plasmon polaritons
  • Surface plasmon-coupled emission

Fingerprint

Dive into the research topics of 'Para-hexaphenylene (p-6P) nanofibers grown on a silver surface for polarization-insensitive surface plasmon polariton excitation'. Together they form a unique fingerprint.

Cite this