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Directional control of surface rolling molecules exploiting non-uniform heat-induced substrates
, Article Physical chemistry chemical physics : PCCP ; Volume 22, Issue 46 , 7 December , 2020 , Pages 26887-26900 ; Nejat Pishkenari, H ; Meghdari, A ; Ge, S. S ; Sharif University of Technology
NLM (Medline)
2020
Abstract
Molecular machines, such as nanocars, have shown promising potential for various tasks, including manipulation at the nanoscale. In this paper, we examined the influence of temperature gradients on nanocar and nanotruck motion as well as C60 - as their wheel - on a flat gold surface under various conditions. We also compared the accuracy and computational cost of two different approaches for generating the temperature gradient. The results show that severe vibrations and frequent impacts of gold atoms at high temperatures increase the average distance of C60 from the substrate, reducing its binding energy. Moreover, the temperature field drives C60 to move along the temperature variation;...