Laser-Induced Nanowire Percolation Interlocking for Ultrarobust Soft Electronics  

作　　者：Yeongju Jung Kyung Rok Pyun Sejong Yu Jiyong Ahn Jinsol Kim Jung Jae Park Min Jae Lee Byunghong Lee Daeyeon Won Junhyuk Bang Seung Hwan Ko 

机构地区：[1]Applied Nano and Thermal Science Lab,Department of Mechanical Engineering,Seoul National University,1 Gwanak-ro,Gwanak-gu,Seoul 08826,South Korea [2]Energy Device Research Team,Hyundai Motor Company,37 Cheoldobangmulgwan-ro,Uiwang-si,Gyeonggi-do 16082,South Korea [3]Institute of Advanced Machinery and Design(SNU-IAMD),Seoul National University,Gwanak-ro,Gwanak-gu,Seoul 08826,South Korea

出　　处：《Nano-Micro Letters》2025年第6期40-54,共15页纳微快报(英文版)

基　　金：supported by the National Research Foundation of Korea(NRF)Grant(RS-2024-00343512,RS-2024-00416938).

摘　　要：Metallic nanowires have served as novel materials for soft electronics due to their outstanding mechanical compliance and electrical properties.However,weak adhesion and low mechanical robustness of nanowire networks to substrates significantly undermine their reliability,necessitating the use of an insulating protective layer,which greatly limits their utility.Herein,we present a versatile and generalized laser-based process that simultaneously achieves strong adhesion and mechanical robustness of nanowire networks on diverse substrates without the need for a protective layer.In this method,the laser-induced photothermal energy at the interface between the nanowire network and the substrate facilitates the interpenetration of the nanowire network and the polymer matrix,resulting in mechanical interlocking through percolation.This mechanism is broadly applicable across different metallic nanowires and thermoplastic substrates,significantly enhancing its universality in diverse applications.Thereby,we demonstrated the mechanical robustness of nanowires in reusable wearable physiological sensors on the skin without compromising the performance of the sensor.Furthermore,enhanced robustness and electrical conductivity by the laser-induced interlocking enables a stable functionalization of conducting polymers in a wet environment,broadening its application into various electrochemical devices.

关 键 词：Nanowire percolation network Laser processing Mechanical interlocking FUNCTIONALIZATION Conducting polymer 

分 类 号：TB3[一般工业技术—材料科学与工程]