In situ atomic force microscopy imaging of electrodeposition of mixed layers of copper/cuprous oxide

被引:11
作者
Bonnefont, A
Kostecki, R
McLarnon, F
Arrayet, JC
Servant, L
Argoul, F
机构
[1] Ctr Rech Paul Pascal, F-33600 Pessac, France
[2] Lab Physio Chim Mol, F-33405 Talence, France
[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
关键词
D O I
10.1149/1.1392598
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
In situ atomic force microscopy (AFM) was applied to the dynamic characrerization of the growth of mixed Cu/Cu2O layers obtained by galvanostatic electrodeposition from alkaline Cu(II) lactate solutions. The correlation of the cathode potential profile with the average topographic profiles computed from the AFM images provided evidence for two transitions in the deposit growth during which the average growth velocity underwent rapid accelerations, the first one corresponding to zero interfacial concentration (Sand's time) and the second one to the emergence of the oscillations by a smooth transition. Despite its temporal resolution, the AFM technique could not capture the details of a single oscillation, but it proved to be quite adequate for tracking the general evolution of the electrode surface. (C) 1999 The Electrochemical Society. S0013-4651(99)05-034-X. All rights reserved.
引用
收藏
页码:4101 / 4104
页数:4
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