Electron Transfer Dynamics at p-GaAs/Liquid Interfaces

Y. Rosenwaks, B. R. Thacker, R. K. Ahrenkiel, A. J. Nozik

Research output: Contribution to journalArticlepeer-review

36 Scopus Citations


The rates of photoinduced electron transfer from sulfide-passivated p-GaAs to outer-sphere redox acceptors (ferricenium and cobalticinium) in acetonitrile have been measured using time-correlated single-photon-counting of photoluminescence decay. The characteristic time scales for electron transfer were found to be very fast, manifested by electron transfer velocities ranging from 2 × 105 to 106 cm/s at 1 mM concentrations. These rates are 4-5 orders of magnitude faster than predicted by other workers.

Original languageAmerican English
Pages (from-to)10096-10098
Number of pages3
JournalJournal of Physical Chemistry
Issue number25
StatePublished - 1992

NREL Publication Number

  • NREL/JA-453-5021


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