Near-field fluorescence microspectroscopy of tetracene microcrystals

Hiroyuki Yoshikawa*, Keiji Sasaki, Hiroshi Masuhara

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review

6 Scopus citations

Abstract

A near-field microspectroscopy system was developed for fluorescence analyses of tetracene microcrystals. Topographies, fluorescence images, and spectra of microcrystals with size of sub μm ∼ a few μm were measured with ∼100 nm spatial resolution. The relative intensities of two emission bands of the fluorescence spectra were shown to be different between individual microcrystals. The dependence of fluorescence spectra upon crystal thickness was found by correlating topographies with fluorescence images, and discussed in view of the distribution of defect-sites at the surfaces and interfaces.

Original languageEnglish
Pages (from-to)203-208
Number of pages6
JournalMolecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals
Volume314
DOIs
StatePublished - 1 Jan 1998
EventProceedings of the 1998 TAPPI Metered Size Press Forum - New Orleans, LA, USA
Duration: 30 Apr 19982 May 1998

Keywords

  • Fluorescence spectroscopy
  • Microcrystal
  • Near-field scanning optical microscope
  • Tetracene

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