Sub-picosecond photoinduced electron transfer in water-soluble porphyrin dimers

F. J. Vergeldt*, R. B.M. Koehorst, T. J. Schaafsma, J. C. Lambry, J. L. Martin, D. G. Johnson, M. R. Wasielewski

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

52 Scopus citations


Picosecond as well as femtosecond transient absorption measurements have been performed on eight water-soluble heterodimers consisting of combinations of oppositely charged free base and metal porphyrins which have been electrochemically characterized. The ultrafast non-exponential absorption increase, attributed to solvent-controlled, intradimer charge separation, is energy-gap independent. By contrast, the much slower charge recombination is energy-gap dependent.

Original languageEnglish (US)
Pages (from-to)107-113
Number of pages7
JournalChemical Physics Letters
Issue number2
StatePublished - Jul 26 1991

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry


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