Auger recombination dynamics in hybrid silica-coated CdTe nanocrystals.

نویسندگان

  • Gabriel Sagarzazu
  • Yoichi Kobayashi
  • Norio Murase
  • Ping Yang
  • Naoto Tamai
چکیده

CdTe quantum dots coated with a silica layer containing CdS-like clusters exhibit intense photoluminescence and a spectral red-shift. Biexciton Auger recombination of these particles is examined by transient absorption spectroscopy. A lengthening of the Auger recombination lifetime by a factor of ∼3.5 in the presence of the CdS-like clusters is observed and may contribute to the good PL properties of these nanostructures.

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عنوان ژورنال:
  • Physical chemistry chemical physics : PCCP

دوره 13 8  شماره 

صفحات  -

تاریخ انتشار 2011