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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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Updated: May 19, 2026

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

Graphene: an emerging electronic material.

Nathan O Weiss¹, Hailong Zhou, Lei Liao

¹Department of Materials Science and Engineering, UCLA, Los Angeles, CA 90095, USA.

Advanced Materials (Deerfield Beach, Fla.)

|August 30, 2012

Summary

This summary is machine-generated.

Graphene, a novel carbon material, shows promise for advanced electronics due to its superior properties. Challenges remain for commercial use, but prototypes demonstrate its potential for next-generation technologies.

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Last Updated: May 19, 2026

A Standard and Reliable Method to Fabricate Two-Dimensional Nanoelectronics

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Area of Science:

Materials Science
Condensed Matter Physics
Nanotechnology

Background:

Graphene is a single layer of carbon atoms with a honeycomb lattice structure.
It possesses exceptional physical and electronic properties, including high carrier mobility and saturation velocity.
These properties make it a strong candidate for next-generation electronic devices.

Purpose of the Study:

To explore the potential applications of graphene in electronic devices.
To highlight the advantages and novel functionalities offered by graphene-based technologies.
To identify challenges hindering the commercial viability of graphene.

Main Methods:

Review of graphene's fundamental properties.
Analysis of its suitability for various electronic applications.
Examination of existing laboratory prototypes and their performance.

Main Results:

Graphene's high carrier mobility and saturation velocity enable fast switching speeds for radio-frequency analog circuits.
Its semi-metallic nature (without bandgap engineering) limits its use in digital logic electronics due to the absence of a true off-state.
Graphene demonstrates versatility in applications including flexible electronics, optoelectronics, sensors, and energy technologies.

Conclusions:

Graphene offers significant advantages and novel functionalities for a new generation of electronic devices.
Despite challenges in commercialization, laboratory prototypes showcase its transformative potential.
Further research and development are needed to overcome limitations and realize widespread adoption.