2017 Volume 30 Issue 3 Pages 341-343
Maskless laser direct writing method is expected to realize the on demand manufacturing of various kinds of devices in printed electronics. On demand fabrication of a copper mi-cropattern via laser direct writing using a copper nanoparticle ink and a sensor application in combination with graphene oxide were studied. A device consisting of a copper interdigital electrode and graphene oxide coating layer was applied to a humidity sensor.