Electron and Hole Transfer from Indium Phosphide Quantum Dots

J. L. Blackburn, D. C. Selmarten, R. J. Ellingson, M. Jones, O. Micic, A. J. Norik

Research output: Contribution to journalArticlepeer-review

124 Scopus Citations


Electron- and hole-transfer reactions are studied in colloidal InP quantum dots (QDs). Photoluminescence quenching and time-resolved transient absorption (TA) measurements are utilized to examine hole transfer from photoexcited InP QDs to the hole acceptor N,N,N′,N′-tetramethyl-p-phenylenediamine (TMPD) and electron transfer to nanocrystalline titanium dioxide (TiO 2) films. Core-confined holes are effectively quenched by TMPD, resulting in a new ∼4-ps component in the TA decay. It is found that electron transfer to TiO 2 is primarily mediated through surface-localized states on the InP QDs.

Original languageAmerican English
Pages (from-to)2625-2631
Number of pages7
JournalJournal of Physical Chemistry B
Issue number7
StatePublished - 2005

NREL Publication Number

  • NREL/JA-590-37329


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