Related Experiment Video
Updated: Jul 17, 2025
11:24
Optimized Fabrication Procedure for High-Quality Graphene-based Moiré Superlattice Devices
Published on: July 11, 2025
128
Controllable Friction on Graphene via Adjustable Interfacial Contact Quality
Wen Wang1, Yu Zhang1, Zhihong Li2
1School of Mechanical Engineering, Southwest Jiaotong University, Chengdu, 610031, China.
Advanced Science (Weinheim, Baden-Wurttemberg, Germany)
|September 4, 2023
Summary
Researchers developed a new method to reversibly pattern graphene
Area of Science:
- Materials Science
- Nanotechnology
- Tribology
Background:
- Graphene exhibits unique tribological properties, but practical applications are limited.
- Controlling friction at the nanoscale is crucial for advanced material applications.
Purpose of the Study:
- To present a novel method for reversible patterning of graphene's frictional properties.
- To explore graphene's potential for high-capacity information storage.
Main Methods:
- Utilizing out-of-plane mechanical tapping with an atomic force microscopy (AFM) tip.
- Investigating changes in interfacial binding strength between graphene and substrate.
Main Results:
- Friction force increased up to twofold through mechanical tapping.
- Demonstrated reversible and repeatable control over graphene's friction.
- Achieved a high storage capacity of approximately 1600 GB inch⁻².
Conclusions:
- Mechanical tapping offers a viable method for tuning friction in graphene.
- Graphene's tunable friction properties are promising for information storage devices.
- Understanding nanoscale friction is key for developing novel graphene applications.
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