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Production of a Strain-Measuring Device with an Improved 3D Printer

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Published on: January 30, 2020

Engineered piezoelectricity in graphene.

Mitchell T Ong¹, Evan J Reed

¹Department of Materials Science and Engineering, Stanford University, Stanford, California 94305, United States.

|December 27, 2011

Summary

This summary is machine-generated.

Scientists engineered piezoelectricity into graphene by selectively adsorbing atoms. This breakthrough enables nanoscale electromechanical devices with tunable dynamical control.

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Area of Science:

Materials Science
Condensed Matter Physics
Nanotechnology

Background:

Graphene is a nonpiezoelectric 2D material.
Piezoelectric materials generate electric charge in response to applied mechanical stress.

Purpose of the Study:

To engineer piezoelectricity into graphene.
To investigate the potential of nanoscale piezoelectric phenomena.

Main Methods:

Computational calculations.
Selective surface adsorption of atoms on graphene.

Main Results:

Doping graphene on one side with atoms breaks inversion symmetry, inducing piezoelectricity.
Calculated piezoelectric magnitudes are comparable to traditional 3D piezoelectric materials.
Demonstrated a designer piezoelectric effect unique to the nanoscale.

Conclusions:

Selective atom adsorption is a viable method to create piezoelectric graphene.
Engineered piezoelectric graphene offers potential for advanced nanoscale electromechanical systems.
This work opens new avenues for dynamical control in nanoelectronic devices.