High‐Temperature Oxidation‐Resistant Printed Copper Conductors

Abstract Advanced materials, electrically conductive and oxidation resistant, are frontrunners for technological advancements in cutting‐edge high‐temperature electronics. Rational design manufacturing of hierarchical material structures is indispensable to achieve such disparate functionalities. Here, copper–graphene conductors, through additive manufacturing, which prohibits oxygen adsorbates serves as the barrier migration enable electric stability reliability at high temperatures, reported. The combination graphene alumina surface passivation enables under thermal impact above 1000 °C. findings shown here, synergistic conductivity resistance, enunciate capabilities additively manufactured flexible electronics operating harsh conditions.