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  • Title: Electron and hole transfer from indium phosphide quantum dots.
    Author: Blackburn JL, Selmarten DC, Ellingson RJ, Jones M, Micic O, Nozik AJ.
    Journal: J Phys Chem B; 2005 Feb 24; 109(7):2625-31. PubMed ID: 16851267.
    Abstract:
    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 (TiO2) films. Core-confined holes are effectively quenched by TMPD, resulting in a new approximately 4-ps component in the TA decay. It is found that electron transfer to TiO2 is primarily mediated through surface-localized states on the InP QDs.
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