Fluorescence analysis of single organic microcrystals by near-field fluorescence microspectroscopy

Hiroyuki Yoshikawa*, Keiji Sasaki, Hiroshi Masuhara

*Corresponding author for this work

Research output: Contribution to conferencePaper

Abstract

Single perylene and tetracene microcrystals were analyzed by fluorescence imaging using near-field scanning optical microscopy (NSOM). The crystals were embedded in a spin-coated polyvinyl alcohol films or dispersed glass plates. Fluorescence spectra exhibited a slight difference between individual crystals and for some crystals the spectra changed from spot to spot. Fluorescence spectra from tetracene were similar to the bulk tetracene crystal and peak intensity ratios at 540 and 570 nm were different between microcrystals. The relation of the spectroscopic properties of the microcrystals and near field images is also discussed.

Original languageEnglish
Pages160-161
Number of pages2
StatePublished - 1 Jan 1997
EventProceedings of the 1997 Conference on Quantum Electronics and Laser Science, QELS - Baltimore, MD, USA
Duration: 18 May 199723 May 1997

Conference

ConferenceProceedings of the 1997 Conference on Quantum Electronics and Laser Science, QELS
CityBaltimore, MD, USA
Period18/05/9723/05/97

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    Yoshikawa, H., Sasaki, K., & Masuhara, H. (1997). Fluorescence analysis of single organic microcrystals by near-field fluorescence microspectroscopy. 160-161. Paper presented at Proceedings of the 1997 Conference on Quantum Electronics and Laser Science, QELS, Baltimore, MD, USA, .