Fast-ion-induced fluorescence from J aggregate of cyanine dye in Langmuir-Blodgett films

K. Asai, S. Seki, T. Sato, K. Ishigure, H. Shibata

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


The luminescence from pseudo-isocyanine Langmuir-Blodgett films induced by the irradiation of charged particles with energy of the order of megaelectronvolts has been measured. The damaged cross-sections for the emission yield in the cases of H+ and He+ were determined and related to an effective coherent size of J aggregate. In addition to the fluorescence from the well-known excitonic states (J band) which had been observed with photo-excitation, a new band was found at lower frequencies in emission spectra. The experimental results indicate that the mobilities of the species responsible for this band are larger than those for the J band.

Original languageEnglish
Pages (from-to)286-291
Number of pages6
JournalThin Solid Films
Issue number1-2
Publication statusPublished - 1995 Mar 15
Externally publishedYes


  • Fluorescence
  • Ion bombardment
  • Langmuir-Blodgett films
  • Radiation damage

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry


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