Printing Nanostructured Copper for Electromagnetic\nInterference Shielding

Abstract

Printing metallic nanomaterials toward\nelectromagnetic interference\nshielding is highly desirable, especially with a minimal thickness\nand mechanical flexibility. Here, we report the geometry and conductivity\neffects of printed nanostructured copper on the reflection and absorption\nof electromagnetic interference shielding. The electromagnetic interference\nshielding is observed to increase as the conductivity increases with\nthe optimum electromagnetic interference shielding effectiveness of\n65 dB, on which a shielding effectiveness diagram is constructed to\nillustrate the role of electric conductivity and architectures of\nprinted nanostructured copper features. The findings reported here\nprovide insight into printed flexible metallic materials for electromagnetic\ninterference shielding.