Fluorescence enhancement, blinking suppression, and gray states of individual semiconductor nanocrystals close to gold nanoparticles

Link:
Autor/in:
Erscheinungsjahr:
2010
Medientyp:
Text
Schlagworte:
  • Nanocrystals
  • Semiconductor quantum dots
  • Core/shell nanocrystals
  • Semiconductor Quantum Dots
  • Zinc Sulfide
  • Nanocrystals
  • Semiconductor quantum dots
  • Core/shell nanocrystals
  • Semiconductor Quantum Dots
  • Zinc Sulfide
Beschreibung:
  • The optical properties of nanocrystals arc drastically changed by the interaction with adjacent metal nanoparticules By time-resolved photoluminescence spectroscopy. we investigate CdSe multishell nanocrystals coupled to self-assembled films of Au nanoparticles The distance between emitter and metal is adjusted by coating the nanocrystals with silica shells These NCs showed increased fluorescence intensity, a decreased fluorescence lifetime, strong blinking suppression, and fluorescence from gray states These observations can be explained by the metal particle induced change of excitation and recombination rates
Lizenz:
  • info:eu-repo/semantics/restrictedAccess
Quellsystem:
Forschungsinformationssystem der UHH

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oai:www.edit.fis.uni-hamburg.de:publications/f42459ea-41e5-4028-aec9-7e1f46f337bc