Thickness-dependent Electromagnetic Interference shielding from a three-layered heterostructure of TMDs and carbon nanostructures*

Electromagnetic interference (EMI) can hamper the optimal performance of instruments and even cause damage to the system. One effective solution to this issue is the use of an EMI shield. This study proposes a three-layered heterostructure of a carbon fiber-reinforced polymer (CFRP), WSe₂, and a final cast of multiwall carbon nanotube (MWCNT) as a promising candidate for shielding applications. Samples of different thicknesses of WSe₂ were deposited on CFRP by magnetron sputtering with a pulsed DC source and evaluated for shielding effectiveness. The cast of MWCNT showed an enhanced shielding efficiency compared to the two-layered structure suggesting a potential design for EMI shielding in the automobiles, aviation, and construction industry.