Preparation of luminescent CdTe nanocrystal-BaSO4 composite microspheres Article

cited authors

  • Liu, Y; Zhang, H; Wang, CL; Yang, B

fiu authors

abstract

  • On the basis of the technique of surfactant bilayer modification, aqueous luminescent CdTe nano-crystals(NCs) were modified with DODAB layer and SDS layer. Due to the introduction of S0O4- sites on NC surface from SDS layer, NCs were further incorporated into BaSO4 composite microspheres through the stepwise addition of Ba2+ and SO42-. The size and the composition of microspheres were characterized via SEM, TEM, confocal fluorescence microscope and XRD. Owning to the protection of BaSO4, the photoluminescence of as-prepared BaSO4-CdTe microspheres were more antacid than the original aqueous CdTe NCs.

publication date

  • December 1, 2008

start page

  • 2563

end page

  • 2568

volume

  • 29

issue

  • 12