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.
|Number of pages||2|
|Journal||Journal of the American Chemical Society|
|Publication status||Published - Aug 27 2008|
ASJC Scopus subject areas
- Colloid and Surface Chemistry