Temperature-promoted electrodeposition on thiolate-modified electrodes

被引:17
作者
Cavalleri, O [1 ]
Kind, H [1 ]
Bittner, AM [1 ]
Kern, K [1 ]
机构
[1] Ecole Polytech Fed Lausanne, Dept Phys, Inst Expt Phys, CH-1015 Lausanne, Switzerland
关键词
D O I
10.1021/la980210d
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The influence of temperature on the electrodeposition of copper on alkanethiolate-covered Au(lll) was studied by means of cyclic voltammetry and in situ scanning tunneling microscopy (STM) in the temperature range from 300 to 345 K. We show that thermally induced defects allow for copper electrodeposition to occur much faster than at 300 K. Only at elevated temperatures can smooth copper layers be grown on the thiolated electrodes, independent of the thiolate chain length. The layerwise growth is mediated by a surfactant-libe action of the thiolate.
引用
收藏
页码:7292 / 7297
页数:6
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