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Asymmetric Dumbbells from Selective Deposition of Metals on Seeded Semiconductor Nanorods
Author(s) -
Chakrabortty Sabyasachi,
Yang Jie An,
Tan Yee Min,
Mishra Nimai,
Chan Yinthai
Publication year - 2010
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200906783
Subject(s) - nanorod , seeding , materials science , semiconductor , nanotechnology , nanoparticle , deposition (geology) , chemical engineering , optoelectronics , paleontology , aerospace engineering , sediment , engineering , biology
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).