Intrinsically Stretchable Multilayer Film with Adjustable EMI Shielding and Multifunctionality for Wearable Electronics in Virtual and Augmented Reality.

Authors

Hongtao Guo, Heng Luo, Haojie Jiang, Fei Pan, Yang Yang, Xiao Wang, Lingyang Ruan, Runa Zhang, Bin Yuan, Wei Lu

Published in

Nano letters. Apr 15, 2025. Epub Apr 15, 2025.

Abstract

Wearable electronics, particularly for virtual and augmented reality (VR/AR), require flexible films with sensing, motion detection, and electromagnetic interference (EMI) shielding capabilities. However, current films often exhibit unsatisfactory stretchability and integration of multifunctionality. Herein, we present a multilayer flexible electronic film that addresses these challenges by combining a conductive silver nanowire network for EMI shielding, a graphene-based sensing layer for motion detection, and a liquid-metal-infused layer for shape deformation and adjustable stiffness. The film demonstrates exceptional stretchability (∼314%) and outstanding EMI shielding effectiveness (68675 dB/mm), along with remarkable sensitivity for motion detection, achieving a gauge factor of 715. These performance metrics position the film as a leading stretchable material, achieving an exceptional balance between adjustable EMI shielding, strain-sensing capabilities, and stretchability. These advancements enable reliable human motion detection, customizable EMI shielding, and durable, adaptable deformation, offering substantial potential for VR/AR devices and other flexible electronic applications.

PMID:
40233141
Bibliographic data and abstract were imported from PubMed on 16 Apr 2025.

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