Concepedia

Graphene-based electronic sensors

Qiyuan He, Shixin Wu, Zongyou Yin, Hua Zhang

Chemical Science · 2012 · 737 citations · 92 references

TL;DR

Graphene’s two‑dimensional structure and exceptional properties, combined with its atomic‑thickness sensitivity to environmental changes, make it an ideal channel material for field‑effect transistor electronic sensors. This minireview surveys graphene‑based electronic sensors for detecting a range of chemicals and biomolecules. The authors describe various graphene materials used in sensors, emphasizing how reduced graphene oxide enables cost‑efficient, high‑yield, and highly reproducible device fabrication.

Abstract

Graphene, the archetypal two-dimensional material, is attracting increasing attention due to its unique and superior properties. The atomic thickness of the graphene sheet is extremely sensitive towards the change of local environment, making it an ideal channel material in field-effect transistors used as electronic sensors. In this minireview, we review the graphene-based electronic sensors for detection of various chemicals and biomolecules. We first introduce the different kinds of graphene materials used in the electronic sensors and how they affect the device sensing performance. Then we focus on the use of the reduced graphene oxide for the fabrication of cost-efficient, high-yield and highly reproducible sensing devices.