Ink-Jet Printed Graphene Electronics

TL;DR

This paper demonstrates the use of ink-jet printing for large-scale fabrication of graphene electronics, achieving high mobility transistors and transparent conductive patterns, enabling flexible and transparent devices on various substrates.

Contribution

It introduces a novel ink formulation and printing process for graphene devices, advancing scalable manufacturing of flexible electronics.

Findings

Graphene transistors with mobilities up to 95 cm^2V^(-1)s^(-1)

Transparent conductive patterns with 80% transmittance

Sheet resistance of approximately 30 kΩ/sq

Abstract

We demonstrate ink-jet printing as a viable method for large area fabrication of graphene devices. We produce a graphene-based ink by liquid phase exfoliation of graphite in N-Methylpyrrolidone. We use it to print thin-film transistors, with mobilities up to~95cm^2V^(-1)s(-1), as well as transparent and conductive patterns, with~80 % transmittance and~30kOhm/sq sheet resistance. This paves the way to all-printed, flexible and transparent graphene devices on arbitrary substrates