Multifunctional Wearable Silver Nanowire Decorated Leather Nanocomposites for Joule Heating, Electromagnetic Interference Shielding and Piezoresistive Sensing

Abstract

Multifunctional wearable electronic devices based on natural materials are highly desirable for versatile applications of energy conversion, electronic skin and artificial intelligence. Herein, multifunctional wearable silver nanowire decorated leather (AgNW/leather) nanocomposites with hierarchical structures for integrated visual Joule heating, electromagnetic interference (EMI) shielding and piezoresistive sensing are fabricated via the facile vacuum‐assisted filtration process. The AgNWs penetrate the micro‐nanoporous structures in the corium side of leather constructing highly‐efficient conductive networks. The resultant flexible and mechanically strong AgNW/leather nanocomposites exhibit extremely low sheet resistance of 0.8 Ω/sq, superior visual Joule heating temperatures up to 108 °C at low supplied voltage of 2.0 V due to efficient energy conversion, excellent EMI shielding effectiveness (EMI SE) of ≈55 dB and outstanding piezoresistive sensing ability in human motion detection. This work demonstrates the fabrication of multifunctional AgNW/leather nanocomposites for next‐generation wearable electronic devices in energy conversion, electronic skin and artificial intelligence, etc.

Nano-engineered versatile Janus natural-skin with sandwich structure for wearable all-season personal thermal management

“…Natural skin offers advantages such as softness, renewability, hygiene, biocompatibility, and mechanical strength, setting it apart from other polymer fabrics. [37][38][39][40] These qualities have made natural-skin a preferred substrate for the creation of wearable fabrics, and, more recently, a handful of functional natural-skin materials with thermal management properties have been successfully developed. [31,41,42] However, existing naturalskin products with single thermal management attributes fall short in addressing seasonal and weather changes.…”

Numerical Simulation on the Optimization of the Anisotropic Thermal Conductivity of Hexagonal Boron Nitride/Nanofiber Composite Films

“…High-performance heat dissipation has become a substantive need for developing the miniaturization and densification of electronic devices to solve “hot spot” problems because the generated heat accumulation poses a threat to the function and reliability of electronic components. − To quickly remove excess heat from the confined space of electronic devices, it is highly required to enhance the heat dissipation along a specific direction. − …”

Shell structure control of monodisperse polystyrene‐silver composite microspheres and synthesis of epoxy resin‐based anisotropic conductive adhesives

“…Silver is the optimum choice due to its excellent electrical conductivity and chemical stabilities 13,34,35 . Meanwhile, it is used in various fields with structures such as nanoparticles and nanowires 36‐40 . Electrodeposition, 41 chemical plating, 42 layer‐by‐layer (LBL) self‐assembly, 16,43,44 and in situ reduction 45,46 have been proposed to prepare polymer/mental complexes.…”

“…13,34,35 Meanwhile, it is used in various fields with structures such as nanoparticles and nanowires. [36][37][38][39][40] Electrodeposition, 41 chemical plating, 42 layer-by-layer (LBL) self-assembly, 16,43,44 and in situ reduction 45,46 have been proposed to prepare polymer/mental complexes. Among these methods, chemical plating is a simple, convenient, and industrial method for nuclear cladding.…”