KAUST DepartmentAdvanced Membranes and Porous Materials Research Center
Advanced Nanofabrication, Imaging and Characterization Core Lab
Biological and Environmental Sciences and Engineering (BESE) Division
Chemical Science Program
Imaging and Characterization Core Lab
Nanostructured Functional Materials (NFM) laboratory
Physical Science and Engineering (PSE) Division
Permanent link to this recordhttp://hdl.handle.net/10754/561961
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AbstractWe report a new type of water-soluble ultrathin Au-Ag alloy nanowire (NW), which exhibits unprecedented behavior in a colloidal solution. Upon growth of a thin metal (Pd, Pt, or Au) layer, the NW winds around itself to give a metallic double helix. We propose that the winding originates from the chirality within the as-synthesized Au-Ag NWs, which were induced to untwist upon metal deposition. © 2011 American Chemical Society.
SponsorsWe thank Prof. Chan Yin Thai from National University of Singapore for the helpful advice. This work was supported by the MOE (ARC 13/09) and A*Star (102-152-0018) of Singapore.
PublisherAmerican Chemical Society (ACS)