2026-04-17T10:30:06Zhttps://recercat.cat/oai/request

oai:recercat.cat:2445/1930062025-12-05T14:48:11Zcom_2072_1057col_2072_478821col_2072_478917

00925njm 22002777a 4500 dc Fernández Pradas, Juan Marcos author Sopeña i Martínez, Pol author González-Torres, Sergio author Arrese Carrasquer, Javier author Cirera Hernández, Albert author Serra Coromina, Pere author 2023-02-02T18:42:26Z 2023-02-02T18:42:26Z 2018-02-07 2023-02-02T18:42:26Z Laser-induced forward transfer (LIFT) is a printing technique based on the action of a laser pulse that is focused on a thin film of a precursor ink for getting the transfer of a droplet onto a receiver substrate. The experiments presented in this article aim to demonstrate the ability of LIFT to produce electronic circuits on paper, a substrate that is flexible, cheap and recyclable. Tests were conducted in order to study the printing of conductive tracks with an Ag ink. The printing of a suspension of carbon nanofibers (CNFs) was also studied in order to demonstrate the ability of LIFT for printing inks with particles with some microns in size that provoke inkjet nozzles to clog. As a proof-of-concept of the LIFT possibilities, both inks were used to print entirely by LIFT a functional humidity sensor on a piece of paper. All the LIFT experiments were performed with a Nd:YAG laser that delivers pulses of a few hundreds of ns in an attempt to approach the technique to laser systems that are already introduced in many production lines for marking and labeling. Electrònica Làsers Impressió digital Electronics Lasers Digital printing Laser-induced forward transfer for printed electronics applications