A team of researchers from the University of Cambridge in the UK demonstrated ink-jet printing as a viable method for large area production of graphene devices. The team produced a graphene-based ink by liquid phase exfoliation of graphite in N-Methylpyrrolidone, and used it to print thin-film transistors. The team also printed transparent conductive patterns.

This research paves the way towards all-printed flexible and transparent graphene devices, on any substrate.