I analyze the efficiency of Förster resonance energy transfer (FRET) in luminescent donor-acceptor complexes based on conjugates of CdSe/ZnS quantum dots and nanorods and the luminescent dyes. Semiconductor nanocrystals serve either as FRET donors or acceptors. Experimentally observed reduced FRET efficiency in complexes of nanorods and dye molecules as compared to quantum dots are found to be attributable to a distance-limited energy transfer rate in case of point-like dye dipoles and extended nanorod dipole.
Mikhail V. Artemyev,
"Resonance energy transfer in conjugates of semiconductor nanocrystals and organic dye molecules," Journal of Nanophotonics 6(1), 061705 (5 October 2012). https://doi.org/10.1117/1.JNP.6.061705