Robust Superlubricity and Moiré Lattice's Size Dependence on Friction between Graphdiyne Layers

Xiaopeng Ruan, Junqin Shi, Xiaomei Wang, William Yi Wang, Xiaoli Fan, Feng Zhou

科研成果: 期刊稿件文章同行评审

28 引用 (Scopus)

摘要

Structural superlubricity is a fascinating physical phenomenon that plays a significant role in many scientific and technological fields. Here, we report the robust superlubricating state achieved on the interface of relatively rotated graphdiyne (GDY) bilayers; such an interface with ultralow friction is formed at nearly arbitrary rotation angles and sustained at temperatures up to 300 K. We also identified the reverse correlation between the friction coefficient and size of the Moiré lattice formed on the surface of the incommensurate stacked GDY bilayers, particularly in a small size range. Our investigations show that the ultralow friction and the reduction of the friction coefficient with the increase in size of the Moiré lattice are closely related to the interfacial energetics and charge density as well as the atomic arrangement. Our findings enable the development of a new solid lubricant with novel superlubricating properties, which facilitate precise modulation of the friction at the interface between two incommensurate contacting crystalline surfaces.

源语言英语
页(从-至)40901-40908
页数8
期刊ACS Applied Materials and Interfaces
13
34
DOI
出版状态已出版 - 1 9月 2021

指纹

探究 'Robust Superlubricity and Moiré Lattice's Size Dependence on Friction between Graphdiyne Layers' 的科研主题。它们共同构成独一无二的指纹。

引用此