Epitaxial growth and photochemical annealing of graded CdS/ZnS shells on colloidal CdSe nanorods.

@article{Manna2002EpitaxialGA,
  title={Epitaxial growth and photochemical annealing of graded CdS/ZnS shells on colloidal CdSe nanorods.},
  author={Liberato Manna and Erik C. Scher and L. Li and A Paul Alivisatos},
  journal={Journal of the American Chemical Society},
  year={2002},
  volume={124 24},
  pages={
          7136-45
        }
}
We report the preparation and structural characterization of core/shell CdSe/CdS/ZnS nanorods. A graded shell of larger band gap is grown around CdSe rods using trioctylphosphine oxide as a surfactant. Interfacial segregation is used to preferentially deposit CdS near the core, providing relaxation of the strain at the core/shell interface. The reported synthesis allows for variation of the shell thickness between one and six monolayers, on core nanorods ranging from aspect ratios of 2:1 to 10… CONTINUE READING
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