Low-Cost\nFabrication of Printed Electronics Devices through Continuous Wave\nLaser-Induced Forward Transfer

Abstract

Laser-induced\nforward transfer (LIFT) is a direct-writing technique that allows\nprinting inks from a liquid film in a similar way to inkjet printing\nbut with fewer limitations concerning ink viscosity and loading particle\nsize. In this work, we prove that liquid inks can be printed through\nLIFT by using continuous wave (CW) instead of pulsed lasers, which\nallows a substantial reduction in the cost of the printing system.\nThrough the fabrication of a functional circuit on both rigid and\nflexible substrates (plastic and paper), we provide a proof-of-concept\nthat demonstrates the versatility of the technique for printed electronics\napplications.