Machinable long PVP-stabilized silver nanowires.
PVP-capped silver nanowires with a diameter range from 150 to 200 nm and a length range from 50 to 100 microm have been synthesized in large quantity by using a soft-template liquid-phase method. The so-obtained longer and thicker metallic nanowires exhibit fivefold-twinned structures bound by five [1 0 0] wall-planes and two spearlike ends around five [1 1 1] facets. X-ray photoelectron spectroscopy (XPS) investigations show that a strong interaction exists between the carboxyl oxygen atom (C=O) of PVP and the Ag core interface. The PVP-capped Ag nanowires can either self-assemble into ordered raft structures or form a complicated network, depending on the dispersive solvent employed. In addition, the Ag nanowires can also be specifically bent into various angles, demonstrating their excellent mechanical stability.
Jiang
Peng
P
National Center for Nanoscience and Technology (NCNST), Beijing 100080, China. pjiang_hlx@hotmail.com
Li
Shun-Yu
SY
Xie
Si-Shen
SS
Gao
Yan
Y
Song
Li
L