Asymmetric hollow nanorod formation through a partial galvanic replacement reaction.
An asymmetric single hollow structure was generated from Ag-Au-Ag heterometal nanorods by a partial galvanic replacement reaction for the first time. The C(2)-symmetry breaking took place because of the random generation of a single pit on only one end of the silver domain at an early stage of the reaction. Careful control of the reaction kinetics could also yield a double-hollow structure on both ends of the silver domain. The resulting single- and double-hollow nanorods exhibited characteristic extinctions in the near-IR range.
Seo
Daeha
D
Department of Chemistry, Korea Advanced Institute of Science and Technology, Daejeon 305-701, Korea.
Song
Hyunjoon
H
D006046:Gold; D007259:Infrared Rays; D007700:Kinetics; D053768:Metal Nanoparticles / Q000737:chemistry*; D043942:Nanotubes / Q000737:chemistry*; D012834:Silver
D012834:Silver; D006046:Gold