Facile Preparation of Monodisperse Cu@Ag Core-Shell Nanoparticles for Conductive Ink in Printing Electronics.

ABSTRACT: Copper-based nanoinks are emerging as promising low-cost alternatives to widely used silver nanoinks in electronic printing. However, the spontaneous oxidation of copper under ambient conditions poses significant challenges to its broader application. To address this issue, this paper presents an economical, large-scale, and environmentally friendly method for fabricating Cu@Ag nanoparticles (Cu@Ag NPs). The as-prepared nanoparticles exhibit a narrow size distribution of approximately 100 nm and can withstand ambient exposure for at least 60 days without significant oxidation. The Cu@Ag-based ink, with a 60 wt% loading, was screen-printed onto a flexible polyimide substrate and subsequently heat-treated at 290 °C for 15 minutes under a nitrogen atmosphere. The sintered pattern displayed a

SUBMITTER: Li G 

PROVIDER: S-EPMC10383072 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature