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The Role of Cuprous Oxide Seeds in the One‐Pot and Seeded Syntheses of Copper Nanowires
Author(s) -
Ye Shengrong,
Rathmell Aaron R.,
Ha YoonCheol,
Wilson Adria R.,
Wiley Benjamin J.
Publication year - 2014
Publication title -
small
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.785
H-Index - 236
eISSN - 1613-6829
pISSN - 1613-6810
DOI - 10.1002/smll.201303005
Subject(s) - nanowire , copper , materials science , seeding , ethylenediamine , octahedron , nanoparticle , chemical engineering , copper oxide , nanotechnology , yield (engineering) , nanorod , inorganic chemistry , metallurgy , crystallography , chemistry , crystal structure , aerospace engineering , engineering
This paper demonstrates that Cu 2 O nanoparticles form in the early stages of a solution‐phase synthesis of copper nanowires, and aggregate to form the seeds from which copper nanowires grow. Removal of ethylenediamine from the synthesis leads to the rapid formation of Cu 2 O octahedra. These octahedra are introduced as seeds in the same copper nanowire synthesis to improve the yield of copper nanowires from 12% to >55%, and to enable independent control over the length of the nanowires. Transparent conducting films are made from nanowires with different lengths to examine the effect of nanowire aspect ratio on the film performance.