TOPOGRAPHIC AND DIFFUSION MEASUREMENTS OF GOLD AND PLATINUM SURFACES BY SCANNING TUNNELING MICROSCOPY

被引:28
作者
SOMMERFELD, DA [1 ]
CAMBRON, RT [1 ]
BEEBE, TP [1 ]
机构
[1] UNIV UTAH,DEPT CHEM,SALT LAKE CITY,UT 84112
关键词
D O I
10.1021/j100389a015
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
We have used the scanning tunneling microscope in air to investigate the topographic and diffusion properties of the surfaces formed by melting gold and platinum wires into spheres. Nanolithographic parameters, including thresholds for surface modification of the gold and platinum surfaces, have been studied and coefficients for self-diffusion have been determined. The data suggest diffusion rates at room temperature 1-2 orders of magnitude lower on platinum than on gold.
引用
收藏
页码:8926 / 8932
页数:7
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