Laboratory of Energy and Nanosciences, Masdar Institute of Science and Technology, Abu Dhabi, UAE.
Nanoscale. 2012 Feb 7;4(3):792-800. doi: 10.1039/c1nr10954e. Epub 2011 Dec 13.
Imaging with nanoscale resolution has become routine practice with the use of scanning probe techniques. Nevertheless, quantification of material properties and processes has been hampered by the complexity of the tip-surface interaction and the dependency of the dynamics on operational parameters. Here, we propose a framework for the quantification of the coefficients of viscoelasticity, surface energy, surface energy hysteresis and elastic modulus. Quantification of these parameters at the nanoscale will provide a firm ground to the understanding and modelling of tribology and nanoscale sciences with true nanoscale resolution.
利用扫描探针技术，实现纳米级分辨率的成像已成为常规操作。然而，由于尖端-表面相互作用的复杂性以及动力学对操作参数的依赖性，材料性质和过程的定量分析受到了阻碍。在这里，我们提出了一种用于量化粘弹性系数、表面能、表面能滞后和弹性模量的框架。在纳米尺度上对这些参数进行量化，将为真正的纳米分辨率下的摩擦学和纳米科学的理解和建模提供坚实的基础。
