Long-range ordering effect in electrodeposition of zinc and zinc oxide.
In this paper, we report the long-range ordering effect observed in the electro-crystallization of Zn and ZnO from an ultrathin aqueous electrolyte layer of ZnSO4 . The deposition branches are regularly angled, covered with random-looking, scalelike crystalline platelets of ZnO. Although the orientation of each crystalline platelet of ZnO appears random, transmission electron microscopy shows that they essentially possess the same crystallographic orientation as the single-crystalline zinc electrodeposit underneath. Based on the experimental observations, we suggest that this unique long-range ordering effect results from an epitaxial nucleation effect in electrocrystallization.
National Laboratory of Solid State Microstructures & Department of Physics, Nanjing University, Nanjing, China.
Tao
T
Liu
Sheng
S
Wang
Zi-Liang
ZL
Shi
Guo-Bin
GB
Ma
Mu
M
Wang
Ru-Wen
RW
Peng
Xi-Ping
XP
Hao
Nai-Ben
NB
Ming