Transparent carbon nanotube web structures with Ni-Pd nanoparticles for electromagnetic interference (EMI) shielding of advanced display devices

[Display omitted] •Cross-network structure of the CNTs organically connects all areas.•If the material is thin, EMI SE relies heavily on conductivity.•Surface current quickly moves toward the surrounding CNT, and is lost in the form of heat.•When the electromagnetic waves collide with the Ni-Pd alloy, the energy is instantaneously converted into a surface current. Electromagnetic interference (EMI) has become an increasingly severe problem with the advancement in the development of electronic devices. In this study, an EMI shield was fabricated using a complex web structure made of Ni, Pd, and carbon nanotubes (CNTs). The Ni-Pd nanoparticles were evenly distributed on the surface of the CNTs. Samples with various thicknesses, specifically 10, 30, 50, and 100 nm, were fabricated and characterized. The results confirmed that the samples exhibited excellent and uniform electrical conductivity, flexibility, and transparency. In addition, the 100 nm thick shield demonstrated the capability of blocking 99.27% of the incident EMI and was successfully applied to a commercialized cell phone display.