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Keywords:

  • Aerogels;
  • Light-emitting diodes;
  • Luminescence;
  • Nanocrystals, semiconductor;
  • Silica
Thumbnail image of graphical abstract

Luminescent CdSe quantum dots of 2.5 and 6.0 nm dimension have been incorporated into a low-density silica aerogels matrix. The aerogels are formed from the supercritical CO2 extraction of an alcogel containing quantum dots surface passivated with 3-aminopropyltriethoxysilane. The resulting aerogels (see figure and cover) are low scattering and show intense, stable luminescence.