Researchers announce graphene shielding film that retains performance after 400,000 folds
The Korea Institute of Industrial Technology announced that its researchers and a Hanyang University team developed a flexible graphene electromagnetic-shielding film using commercially available dispersing materials. The team said the roughly 0.1-millimeter-thick film reduced electromagnetic energy to one hundred-thousandth of its original level. After 400,000 folding cycles at a 3-millimeter radius, it retained 99.4% of its shielding performance and 97.9% of its electrical conductivity, the researchers said.