Direct measurements of the electric-field-induced change in fluorescence decay profile of a methylene-linked compound of pyrene

Takakazu Nakabayashi, Takehiro Morikawa, Nobuhiro Ohta

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Electric-field effects on fluorescence decay profile have been measured for each fluorescence component of the methylene-linked compound of pyrene, i.e., 1,3-bis-(1-pyrenyl)propane, in a polymer film at a high concentration. It is shown that the field-induced change in fluorescence intensity of the linked compound mainly arises from the field-induced change in initial population of the emitting states. The field-induced decrease in initial population both of the S1 state of pyrene chromophore and of the emitting state of the sandwich type of excimer is attributed to the field-induced charge separation. The efficient charge transport following the field-induced charge separation of the sandwich type excimer is related to the efficient generation of electroluminescence in the methylene-linked compound of pyrene.

Original languageEnglish
Pages (from-to)227-232
Number of pages6
JournalJournal of Photochemistry and Photobiology A: Chemistry
Volume196
Issue number2-3
DOIs
Publication statusPublished - 2008 May 20
Externally publishedYes

Keywords

  • Electric-field effect
  • Excimer
  • Fluorescence
  • Linked compound
  • Pyrene

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Physics and Astronomy(all)

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