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Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
SEM of an inkjet-printed silver nanoparticle ink. The micrograph to the left represents the ink as printed, and the one to the right represents the ink after thermal sintering at 200 °C for 60 min.