Nonradiative resonant excitation transfer from nanocrystal quantum dots to adjacent quantum channels

Nano Lett. 2007 Nov;7(11):3443-51. doi: 10.1021/nl0719731. Epub 2007 Oct 23.

Abstract

Evidence is provided for nonradiative resonant energy transfer (NRET) from excitons in nanocrystal quantum dots (NCQDs) to the confined states of an adjacent quantum well (QW) at low excitation power and rate competitive with the quantum dot radiative decay. This indicates that NRET in optimized NCQD-QW/nanowire systems may provide a solar energy conversion approach with a viable tradeoff with the bottlenecks of charge carrier generation and/or transport to/in electrodes faced by excitonic solar cells.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Absorption
  • Crystallization
  • Electrodes
  • Energy Transfer
  • Equipment Design
  • Ligands
  • Models, Chemical
  • Nanoparticles / chemistry*
  • Nanostructures
  • Nanotechnology / methods*
  • Nanowires
  • Quantum Dots*
  • Quantum Theory
  • Solar Energy
  • Temperature
  • Time Factors

Substances

  • Ligands