自组装膜纳米压痕的分子动力学模拟

Molecular Dynamics Simulation on Nano-indentation of Self-Assembled Monolayers

研究了金探针对沉积在金 (111)表面的 CH3 (CH2 ) 1 5S自组装膜的纳米压痕的分子动力学模拟 .结果表明 ,自组装膜在金探针的作用下出现了跳跃接触现象 ,倾角和法向载荷都出现明显的滞后 。

Molecular dynamics simulations have been used to study the nano-indentation of CH 3(CH 2) 15S self-assembled monolayers on Au(111). The results showed that jump to contact occurred under the action of Au tip. Furthermore, the hysteresis of the tilt angle and lateral load of the monolayers was observed, which was attributed to the adhesion between the tip and the self-assembled monolayer.