Electromagnetic interference shielding film comprising heterogeneously stacked metal-mxene and method for preparing the same
AssigneesGwangju Institute of Science and Technology, Seoul National University R&Db Foundation
InventorsYoung Chang JOO, Han Wool YEON, Geo San KANG
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Abstract
The present inventive concept relates to an electromagnetic interference shielding film comprising a heterogeneously stacked metal-MXene (MX), and a method for preparing the same. With a sandwich structure in which an MXene layer is disposed between metal thin film layers, the electromagnetic interference shielding film exhibits excellent electromagnetic wave shielding efficiency even at a reduced thickness compared to conventional films.
Claims13
An electromagnetic interference shielding film comprising a heterogeneously stacked metal-MXene in a sandwich structure, the electromagnetic interference shielding film comprising:
- a lower metal thin film;
- an MXene layer positioned on the metal thin film;
- and
- an upper metal thin film for electromagnetic shielding positioned on the MXene layer and made of the same material as the lower metal thin film,
- wherein the lower metal thin film and the upper metal thin film induce absorption during multiple internal reflections (AMIR) by dipoles on the surface of the MXene layer at interfaces in contact with the MXene layer.
A method for preparing an electromagnetic interference shielding film comprising a heterogeneously stacked metal-MXene, the method comprising:
- forming a sacrificial layer on a substrate;
- depositing a lower metal thin film on the sacrificial layer;
- coating an interfacial adhesion promoter on the lower metal thin film;
- coating an MXene layer on the lower metal thin film coated with the interfacial adhesion promoter;
- coating an interfacial adhesion promoter on the MXene layer;
- and
- depositing an upper metal thin film on the MXene layer coated with the interfacial adhesion promoter.
Dependencies are inferred from the claim text.