Morphology and photophysical properties of polymer thin films dispersed with dye nanoparticle

Shinjiro Machida, Takeshi Wakamatsu, Sadahiro Masuo, Hiroshi Jinnai, Akira Itaya

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We prepared nanoparticles of an organic dye, acridine orange (AO), dispersed in poly(methacrylic acid) (PMA) films by spin-coating the solution of the two components. The surface of the AO/PMA films became bumpier with increasing AO concentration (cAO). The absorption and fluorescence spectra of AO/PMA films exhibited a marked dependence on cAO at low cAO (cAO < 2.1 × 10- 1 mol kg- 1), and were independent of cAO at high cAO (cAO > 2.1 × 10- 1 mol kg- 1). The peak shift of fluorescence spectra with changing cAO was as large as ∼ 100 nm.

Original languageEnglish
Pages (from-to)2615-2619
Number of pages5
JournalThin Solid Films
Volume516
Issue number9
DOIs
Publication statusPublished - 2008 Mar 3
Externally publishedYes

Keywords

  • Dye nanoparticle
  • Morphology
  • Photophysical properties
  • Polymer thin film

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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