Orthogonal anisotropic friction characteristics of the graphene/GeSe heterostructure

IF 16.8 1区材料科学 Q1 CHEMISTRY, PHYSICAL

Nano Energy Pub Date : 2025-03-11 DOI:10.1016/j.nanoen.2025.110854

Peipei Xu , Xiushuo Zhang , Tianhao Hou , Hong Li , Haojie Lang , Yitian Peng

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引用次数: 0

Abstract

The lattice orientation of two-dimensional (2D) van der Waals (vdW) heterostructure has a significant influence on its electrical, mechanical and frictional properties. Herein, the friction anisotropy of the graphene/germanium selenide (GeSe) heterogeneous interface was investigated using atomic force microscopy (AFM) on a high-precision rotating table with a self-made graphene-coated microsphere probe. The ratio of friction anisotropy at the graphene/GeSe interface reaches 2.8 with the orthogonal characteristics. We obtain a new high stable directional friction control 2D vdW heterostructure interface. According to the theoretical calculations, the potential energy surface (PES) shows that the friction force increases with the decrease of interlayer distance. The anisotropic friction is mainly attributed to the unique inherent anisotropic structure generated by the GeSe fold structure. The formation of interfacial charge between monolayer (ML) GeSe and graphene layer is inhibited. And the weakening of interfacial vdW force further reduces the energy barrier required for sliding interface. The study of friction anisotropy of heterostructure material for the design and control of nanomechanical systems opens up new possibilities.

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来源期刊

Nano Energy CHEMISTRY, PHYSICAL-NANOSCIENCE & NANOTECHNOLOGY

CiteScore

30.30

自引率

7.40%

发文量

1207

审稿时长

23 days

期刊介绍： Nano Energy is a multidisciplinary, rapid-publication forum of original peer-reviewed contributions on the science and engineering of nanomaterials and nanodevices used in all forms of energy harvesting, conversion, storage, utilization and policy. Through its mixture of articles, reviews, communications, research news, and information on key developments, Nano Energy provides a comprehensive coverage of this exciting and dynamic field which joins nanoscience and nanotechnology with energy science. The journal is relevant to all those who are interested in nanomaterials solutions to the energy problem. Nano Energy publishes original experimental and theoretical research on all aspects of energy-related research which utilizes nanomaterials and nanotechnology. Manuscripts of four types are considered: review articles which inform readers of the latest research and advances in energy science; rapid communications which feature exciting research breakthroughs in the field; full-length articles which report comprehensive research developments; and news and opinions which comment on topical issues or express views on the developments in related fields.