Ultrafast electron-transfer and recombination processes on copper phthalocyanine solid/water interface as revealed by picosecond regular reflection spectroscopy

Musubu Ichikawa, Hiroshi Fukumura, Hiroshi Masuhara

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Picosecond absorption spectra of the copper phthalocyanine solid/water interface were obtained by analyzing transient regular reflection spectra, on which photoexcitation relaxation dynamics at the interface was elucidated. Photoelectron ejection from the phthalocyanine solid into water was induced rapidly, and the formed phthalocyanine cation-electron geminate pair recombined with a time constant of 10 ps. The vibrationally excited, electronically ground state was produced by dissipation of electronic energy through the recombination.

Original languageEnglish
Pages (from-to)12072-12075
Number of pages4
JournalJournal of physical chemistry
Volume99
Issue number32
Publication statusPublished - 1995 Dec 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physical and Theoretical Chemistry

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