Regular-wrinkling tunable MXene lattice for electromagnetic interference shielding.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 41519919.
- Also identified by DOI 10.1038/s41467-025-68035-2 and PMC identifier 12868616.
- Licence recorded as CC BY-NC-ND.
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Abstract
Protecting sensitive equipment from electromagnetic radiation damage requires the development of high-performance electromagnetic interference shielding films. As the film thickness is reduced to micro/nano scales, electromagnetic interference shielding capability generally decreases rapidly due to the weaker reflection. As a result, enhanced electromagnetic interference shielding performance in sub-μm thin films remains as an unsolved challenge. Inspired by the naturally wrinkling of fruit skin, we propose a homogeneous strain strategy to achieve self-wrinkling-induced lattice-structured MXene by uniform polymer shrinkage due to dehydration. Uniform wrinkle amplitude can be tuned from 0.8 to 6 μm, which results in additional surface scattering of electromagnetic-waves and electrical conduction paths. The obtained lattice-structured films demonstrate an excellent electromagnetic interference shielding of up to 81.5 dB for a thickness of 17 μm, maintaining high electromagnetic interference shielding performance and stability after enduring various harsh testing conditions. These results demonstrate the potential of wrinkling-induced, surface regular patterns for improving the electromagnetic interference shielding performance of ultra-thin films based on conventional materials.