Picosecond Energy Transfer in Quantum Dot Langmuir - Blodgett Nanoassemblies

  title={Picosecond Energy Transfer in Quantum Dot Langmuir - Blodgett Nanoassemblies},
  author={Marc Achermann and Melissa A. Petruska and Scott A. Crooker and Victor I. Klimov},
  journal={Journal of Physical Chemistry B},
We study spectrally resolved dynamics of Forster energy transfer in single monolayers and bilayers of semiconductor nanocrystal quantum dots assembled using Langmuir−Blodgett (LB) techniques. For a single monolayer, we observe a distribution of transfer times from ∼50 ps to ∼10 ns, which can be quantitatively modeled assuming that the energy transfer is dominated by interactions of a donor nanocrystal with acceptor nanocrystals from the first three “shells” surrounding the donor. We also detect… 

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Resonance Energy Transfer
Resonance energy transfer, also known as Forster- or fluorescence- resonance energy transfer, or electronic energy transfer, is a photonic process whose relevance in many major areas of science is