External electric field effects on emission of a mixture of tetraphenylporphyrin and fullerene doped in a polymer film

Md Wahadoszamen, Takakazu Nakabayashi, Nobuhiro Ohta

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

In a mixture of tetraphenylporphyrin (TPP) and fullerene (C60) doped in a PMMA film, fluorescence of TPP is enhanced and de-enhanced by an electric field in zinc and free-base compounds, respectively, indicating that the electron transfer from the excited state of TPP to C60 is decelerated in zinc compounds and accelerated in free-base compounds by an electric field. TPP was found to form complex upon mixing with C60 which exhibits a broad emission in the wavelength region longer than that of the TPP emission. The complex emission is significantly quenched by an external electric field in both zinc and free base compounds, suggesting that the nonradiative decay of the excited complex is accelerated by an electric field in both cases.

Original languageEnglish
Pages (from-to)85-92
Number of pages8
JournalJournal of the Chinese Chemical Society
Volume53
Issue number1
DOIs
Publication statusPublished - 2006 Feb
Externally publishedYes

Keywords

  • Electric field effects
  • Fluorescence
  • Fullerene
  • Photoinduced electron transfer
  • Porphyrin

ASJC Scopus subject areas

  • Chemistry(all)

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