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Title: Förster resonant energy transfer from an inorganic quantum well to a molecular material: Unexplored aspects, losses, and implications to applications

A systematic investigation of Förster resonant energy transfer (FRET) is reported within a hybrid prototype structure based on nitride single quantum well (SQW) donors and light emitting polymer acceptors. Self-consistent Schrödinger-Poisson modeling and steady-state and time-resolved photoluminescence experiments were initially employed to investigate the influence of a wide structural parameter space on the emission quantum yield of the nitride component. The optimized SQW heterostructures were processed into hybrid structures with spin-casted overlayers of polyfluorenes. The influence of important unexplored aspects of the inorganic heterostructure such as SQW confinement, content, and doping on the dipole-dipole coupling was probed. Competing mechanisms to the FRET process associated with interfacial recombination and charge transfer have been studied and their implications to device applications exploiting FRET across heterointerfaces have been discussed.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Experimental Condensed Matter Physics Laboratory, Department of Physics, University of Cyprus, Nicosia 1678 (Cyprus)
  2. Laboratory of Ultrafast Science, Department of Physics, University of Cyprus, Nicosia 1678 (Cyprus)
  3. Molecular Electronics and Photonics Research Unit, Department of Mechanical Engineering and Materials Science and Engineering, Cyprus University of Technology, Limassol 3603 (Cyprus)
  4. Microelectronics Research Group, IESL, FORTH and Physics Department, University of Crete, P.O. Box 1385, 71110 Heraklion-Crete (Greece)
Publication Date:
OSTI Identifier:
22493296
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Chemical Physics; Journal Volume: 143; Journal Issue: 21; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; 77 NANOSCIENCE AND NANOTECHNOLOGY; COUPLING; DIPOLES; ENERGY TRANSFER; HETEROJUNCTIONS; LAYERS; PHOTOLUMINESCENCE; POISSON EQUATION; POLYMERS; PROBES; QUANTUM WELLS; RECOMBINATION; SCHROEDINGER EQUATION; SPIN; STEADY-STATE CONDITIONS; TIME RESOLUTION; VISIBLE RADIATION