Graphene-based chemiresistive gas sensors

TL;DR

This paper reviews the principles of chemiresistive gas sensors, emphasizing graphene's advantages and recent innovations in applications like respiration monitoring and proximity detection.

Contribution

It provides a comprehensive overview of graphene-based gas sensors, highlighting recent developments and novel applications in various fields.

Findings

Graphene offers unique properties suitable for sensitive gas detection.

Recent applications include respiration monitoring and finger proximity detection.

Different graphene production methods impact sensor performance.

Abstract

Gas sensors are an indispensable ingredient of the modern society, finding their use across a range of industries that include manufacturing, environmental protection and control, automotive and others. Novel applications have been arising, requiring new materials. Here we outline the principles of gas sensing with a focus on chemiresistive-type devices. We follow up with a summary of the advantages and use of graphene as a gas sensing material, discussing the properties of different graphene production methods. Finally, we showcase some recent results that point to novel applications of graphene-based gas sensors, including respiration monitoring and finger proximity detection.