Self-templating growth of copper nanopearl-chain arrays in electrodeposition.
We report here a unique in-plane self-templating electrochemical growth of arrays of copper nanopearl chains from an ultrathin layer of CuSO4 electrolyte. Scanning electron microscopy indicates that the electrodeposit filaments form equally spaced bundles, which consist of long, straight, pearl-chain-like copper filaments with corrugated periodic structure. The bundle separation can be tuned by changing the applied electric current in electrodeposition. Experiments show that the periodic morphology on the nanopearl chain corresponds to the periodic distribution of copper and cuprous oxide. The mechanism for the bundle formation is discussed.
Weng
Yu-Yan
YY
National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China.
Zhang
Bo
B
Fu
Shao-Jie
SJ
Wang
Mu
M
Peng
Ru-Wen
RW
Ma
Guo-Bin
GB
Shu
Da-Jun
DJ
Ming
Nai-Ben
NB