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Network Covalent Solids

Network Covalent Solids

Network covalent solids contain a three-dimensional network of covalently bonded atoms as found in the crystal structures of nonmetals like diamond, graphite, silicon, and some covalent compounds, such as silicon dioxide (sand) and silicon carbide (carborundum, the abrasive on sandpaper). Many minerals have networks of covalent bonds.
To break or to melt a covalent network solid, covalent bonds must be broken. Because covalent bonds are relatively strong, covalent network solids are typically...

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A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

Published on: August 28, 2018

Recent Advances in Two-Dimensional Materials beyond Graphene.

Ganesh R Bhimanapati¹, Zhong Lin², Vincent Meunier^3,4

¹Department of Materials Science and Engineering, Center for Two-Dimensional and Layered Materials, Pennsylvania State University , University Park, Pennsylvania 16802, United States.

|November 7, 2015

Summary

This summary is machine-generated.

Discover the exciting world of two-dimensional (2D) materials beyond graphene. This review covers advances in transition-metal dichalcogenides (TMDs), monoelemental materials, and MXenes, highlighting their properties and device applications.

Keywords:

germanene graphene heterostructures phospherene silicene stanene transition metal dichalcogenide two-dimensional materials van der Waals epitaxy van der Waals solid

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Area of Science:

Materials Science
Condensed Matter Physics
Nanotechnology

Background:

Graphene isolation in 2004 launched the field of two-dimensional (2D) materials.
Non-graphene layered materials, like transition-metal dichalcogenides (TMDs), offer novel properties due to 2D confinement.
Research is rapidly expanding into diverse 2D material systems.

Purpose of the Study:

To review recent advances in 2D materials beyond graphene.
To provide insights into theoretical understanding and experimental breakthroughs.
To discuss emerging material classes and their applications.

Main Methods:

Theoretical modeling of van der Waals (vdW) forces and excitonic properties.
Experimental synthesis and characterization of novel 2D materials.
Review of doping, functionalization, and device integration.

Main Results:

Significant progress in understanding vdW forces and excitonic behavior in 2D materials.
Breakthroughs in synthesis and characterization of TMDs.
Emergence of new families: monoelemental 2D materials (silicene, phosphorene) and MXenes.
Advances in electronic, optoelectronic, and magnetic devices utilizing these materials.

Conclusions:

The field of 2D materials beyond graphene is rapidly evolving.
New materials and understanding of their properties are enabling diverse applications.
Future research holds promise for continued innovation in next-generation devices.