Issue 3, 2021

Mechanics of free-standing inorganic and molecular 2D materials

Abstract

The discovery of graphene has triggered a great interest in inorganic as well as molecular two-dimensional (2D) materials. In this review, we summarize recent progress in the mechanical characterization of free-standing 2D materials, such as graphene, hexagonal boron nitride (hBN), transition metal-dichalcogenides, MXenes, black phosphor, carbon nanomembranes (CNMs), 2D polymers, 2D metal organic frameworks (MOFs) and covalent organic frameworks (COFs). Elastic, fracture, bending and interfacial properties of these materials have been determined using a variety of experimental techniques including atomic force microscopy based nanoindentation, in situ tensile/fracture testing, bulge testing, Raman spectroscopy, Brillouin light scattering and buckling-based metrology. Additionally, we address recent advances of 2D materials in a variety of mechanical applications, including resonators, microphones and nanoelectromechanical sensors. With the emphasis on progress and challenges in the mechanical characterization of inorganic and molecular 2D materials, we expect a continuous growth of interest and more systematic experimental work on the mechanics of such ultrathin nanomaterials.

Graphical abstract: Mechanics of free-standing inorganic and molecular 2D materials

Article information

Article type
Review Article
Submitted
23 okt 2020
Accepted
30 dec 2020
First published
30 dec 2020

Nanoscale, 2021,13, 1443-1484

Mechanics of free-standing inorganic and molecular 2D materials

X. Zhang and A. Beyer, Nanoscale, 2021, 13, 1443 DOI: 10.1039/D0NR07606F

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