High green index electromagnetic interference shields with semiconducting Bi<sub>2</sub>S<sub>3</sub> fillers in a PEDOT:PSS matrix
Sanjoy Sur Roy, Koushik Ghosh, M. Meyyappan, P. K. Giri
Abstract
provides high SE of over 40 dB with a green index value of 0.75. Increasing the filler content to 15 wt% increases the green index close to unity while dropping the SE to 30 dB. The shielding mechanism is explained through electromagnetic parameter measurements and supplemented by density functional theory calculations. This work lays the foundation for the advancement of lightweight and ultrathin green EMI shields with minimum secondary pollution.
Topics & Concepts
ShieldsElectromagnetic interferenceElectromagnetic shieldingMaterials scienceEMIInterference (communication)Matrix (chemical analysis)Composite materialFiller (materials)TelecommunicationsComputer scienceChannel (broadcasting)Electromagnetic wave absorption materialsAdvanced Antenna and Metasurface TechnologiesAdvancements in Battery Materials