Role of Surface Perfection in Chemical Force Microscopy.
Role of Surface Perfection in Chemical Force Microscopy.
复制标题
表面完美在化学力显微镜中的作用。
DOI:
10.1021/la970374e
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发表时间:
1998
期刊:
影响因子:
--
通讯作者:
T. Rayment
中科院分区:
文献类型:
--
作者:
R. McKendry;M. Theoclitou;C. Abell;T. Rayment
In this paper we investigate the effect that the quality of the gold substrate has upon the distribution of adhesion force measurements in chemical force microscopy. Gold samples have been prepared by two protocols which give either predominantly single-crystal Au(111) or polycrystalline gold films on mica. Gold-coated tips and surfaces were functionalized with self-assembled monolayers terminating in carboxylic groups, and more that 500 force-distance plots were taken. Analysis of these plots revealed a 50% narrower distribution of adhesion forces between monolayers prepared on single-crystal surfaces and monolayers prepared on polycrystalline gold, when measurements were repeated at a single point. However when measurements were taken over a 1-μm2 area, the distribution of adhesion forces was similar for both samples. An explanation for this may lie in the size of the domains on the gold surface relative to the contact area of the tip.
DOI:
10.1021/la00004a051
发表时间:
1995
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
作者:
Stuart,JoanK;Hlady,Vladimir
通讯作者:
Hlady,Vladimir
DOI:
10.1021/la960450y
发表时间:
1996
期刊:
Langmuir : the ACS journal of surfaces and colloids
影响因子:
--
作者:
Hlady,V;Pierce,M;Pungor,A
通讯作者:
Pungor,A