[3P01-27] Poster

[3P19S] Transition of tribological characteristics of sumanene self-assembled monolayer by AFM tip indentation

*Reona Minowa¹, Rintaro Matsuyama¹, Hidehiro Sakurai², Naruo Sasaki¹ (1. Graduate School of Informatics and Engineering, The University of Electro-Communications, 2. Graduate School of Engineering, Osaka University)

Molecular dynamics simulation was performed to investigate the tribological properties of the sumanene self-assembled monolayer by rubbing with an AFM tip, and marked change in the tribological properties due to AFM-tip indentation was revealed. For the small loading force, FFT analysis of the lateral force curve exhibits the sumanene molecular arrangement and the H atomic arrangement of sumanene. When the tip was pushed toward the surface, sumanene tilted along the tip forward scan direction and returned to its original position for the backward scan. When the tip was pushed further, fracture of the film occurs.