Rapid and Versatile Photonic Annealing of Graphene Inks for Flexible Printed Electronics

Abstract

Intense pulsed light (IPL) annealing of graphene inks is demonstrated for rapid post-processing of inkjet-printed patterns on various substrates. A conductivity of ≈25 000 S m-1 is achieved following a single printing pass using a concentrated ink containing 20 mg mL-1 graphene, establishing this strategy as a practical and effective approach for the versatile and high-performance integration of graphene in printed and flexible electronics.