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Asymmetric dumbbells from selective deposition of metals on seeded semiconductor nanorods.

Authors
  • Chakrabortty, Sabyasachi
  • Yang, Jie An
  • Tan, Yee Min
  • Mishra, Nimai
  • Chan, Yinthai
Type
Published Article
Journal
Angewandte Chemie International Edition in English
Publisher
Wiley (John Wiley & Sons)
Publication Date
Apr 06, 2010
Volume
49
Issue
16
Pages
2888–2892
Identifiers
DOI: 10.1002/anie.200906783
PMID: 20306507
Source
Medline
License
Unknown

Abstract

Sowing the seeds: the growth of Au and Ag(2)S nanoparticles at distinct positions on CdSe-seeded CdS heterostructured nanorods can be precisely controlled by variations in the concentration of the Au and Ag precursors, respectively. The ability to direct growth on the nanorods can lead to "Janus-type" structures where Au is located at the more reactive end of the nanorod, whilst Ag(2)S is located at the other (see picture; CdSe dark blue, CdS light blue, Au yellow, Ag(2)S gray).

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