Intermittent electron transfer activity from single CdSe/ZnS quantum dots

Abey Issac, Shengye Jin, Tianquan Lian

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Abstract

Electron transfer activity from excited single CdSe/ZnS core/shell quantum dots (QDs) to adsorbed Fluorescein 27 was studied by single QD fluorescence spectroscopy. In comparison with QDs, the QD-acceptor complexes showed a shorter average and broader distribution of QD emission lifetimes due to electron transfer to adsorbates. Large fluctuation of lifetimes in single QD/dye complexes was observed, indicating intermittent electron transfer activity from QDs.

Original languageEnglish
Pages (from-to)11280-11281
Number of pages2
JournalJournal of the American Chemical Society
Volume130
Issue number34
DOIs
Publication statusPublished - Aug 27 2008

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ASJC Scopus subject areas

  • Chemistry(all)

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