The application of Graphene as a sample support in Transmission Electron Microscopy

TL;DR

This paper reviews the advantages of using graphene as a support in transmission electron microscopy, highlighting its potential to improve image quality and stability due to its unique physical properties.

Contribution

It discusses the unique capabilities of graphene as a sample support in electron microscopy and how it addresses common issues like noise, charging, and instability.

Findings

Graphene reduces background noise and improves image contrast.

Graphene's stability enhances sample support during imaging.

Graphene's electrical conductivity minimizes charging effects.

Abstract

Transmission electron microscopy has witnessed rampant development and surging point resolution over the past few years. The improved imaging performance of modern electron microscopes shifts the bottleneck for image contrast and resolution to sample preparation. Hence, it is increasingly being realized that the full potential of electron microscopy will only be realized with the optimization of current sample preparation techniques. Perhaps the most recognized issues are background signal and noise contributed by sample supports, sample charging and instability. Graphene provides supports of single atom thickness, extreme physical stability, periodic structure, and ballistic electrical conductivity. As an increasing number of applications adapting graphene to their benefit emerge, we discuss the unique capabilities afforded by the use of graphene as a sample support for electron microscopy.