Influence of Lateral Movement on Level Behavior of Adhesion Force Measured Repeatedly by an Atomic Force Microscope (AFM) Colloid Probe in Dry Conditions.
Influence of Lateral Movement on Level Behavior of Adhesion Force Measured Repeatedly by an Atomic Force Microscope (AFM) Colloid Probe in Dry Conditions.
复制标题
横向移动对原子力显微镜胶体探针在干燥条件下重复测量粘附力水平行为的影响。
DOI：
10.3390/ma14020370
复制
发表时间：
2021-01-13
期刊：
影响因子：
--
通讯作者：
Lai T
中科院分区：
文献类型：
--
作者：
Li P;Lai T
操作原子力显微镜（AFM）以重复测量聚苯乙烯胶体探针和金膜之间的粘附力，在干燥条件下有和没有横向移动。实验结果表明，在扫描距离较小的情况下，附着力呈现出无横向移动的水平行为：数据点被分组为多个水平，附着力在不同水平之间频繁跳跃。这归因于这样的事实，即当悬臂拉离样品时，样品的接触面积在连续接触之间并不完全相同，并且从一个随机跳到另一个。横向速度和材料磨损对水平特性的影响很小。然而，在中等扫描距离下，仅在某些测量中观察到水平行为，而在其他测量中，粘附力随机分布。在大的扫描距离下，所有测量的附着力都是随机分布的。这是由于悬臂在扫描路径上的许多不同接触区域中拉离样品很长距离。这些结果可能有助于理解横向运动的影响，并暗示微凸体对粘附力的贡献。
An atomic force microscope (AFM) was operated to repeatedly measure the adhesion forces between a polystyrene colloid probe and a gold film, with and without lateral movement in dry conditions. Experimental results show that the adhesion force shows a level behavior without lateral movement and with a small scan distance: the data points are grouped into several levels, and the adhesion force jumps between different levels frequently. This was attributed to the fact that when the cantilever pulls off the sample, the contact area of the sample is not exactly the same between successive contacts and jumps randomly from one to another. Both lateral velocity and material wear have little influence on level behavior. However, with a medium scan distance, level behavior is observed only for some measurements, and adhesion forces are randomly distributed for the other measurements. With a large scan distance, adhesion forces are randomly distributed for all measurements. This was attributed to the fact that the cantilever pulls off the sample in many different contact areas on the scanning path for large distances. These results may help understand the influence of lateral movement and imply the contribution of asperities to adhesion force.
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影响因子：
1.6
作者：
HUTTER, JL;BECHHOEFER, J
通讯作者：
BECHHOEFER, J
不同湿度下 AFM 悬臂揭示的粘附力随横向动态的对数减小
影响因子：
2.2
作者：
Lai, Tianmao;Meng, Yonggang;Huang, Ping
通讯作者：
Huang, Ping
影响因子：
3.2
作者：
Chen, L.;Lee, H.;Adams, G. G.
通讯作者：
Adams, G. G.
影响因子：
1.8
作者：
Castle, GSP;Schein, LB
通讯作者：
Schein, LB
影响因子：
4
作者：
Chen, L.;McGruer, N. E.;Du, Y.
通讯作者：
Du, Y.