Root-inspired,template-confined additive printing for fabricating high-robust conformal electronics  

作　　者：Guifang Liu Xiangming Li Yangfan Qiu Chuanhang Zeng Xinkai Zhu Chao Wang Xiaoliang Chen Chunhui Wang Hongmiao Tian Jinyou Shao 

机构地区：[1]Micro-and Nano-technology Research Center,State Key Laboratory for Manufacturing Systems Engineering,Xi’an Jiaotong University,Xi’an,Shaanxi 710049,China [2]Frontier Institute of Science and Technology(FIST),28 Xianning Road,Xi’an Jiaotong University,Xi’an,Shaanxi 710049,China

出　　处：《Microsystems & Nanoengineering》2024年第6期529-544,共16页微系统与纳米工程(英文)

基　　金：supported by the National Key Research and Development Project(No.2021YFB2011500(XL));National Nature Science Foundation of China(No.52025055(JS));National Nature Science Foundation of China(No.51975467(XL));Joint Fund Project-Enterprise-Shaanxi Coal Joint Fund Project(NO.2021JLM-42(XL));Key Research and Development Program of Shaanxi(No.2022GXLH-01-12).

摘　　要：Conformal electronic devices on freeform surface play a critical role in the emerging smart robotics,smart skins,and integrated sensing systems.However,their functional structures such as circuits tend to tear-off,break,or crack under mechanical or thermal influence when in service,thus limiting the application reliability of conformal electronics.Herein,inspired by the tree root system,template-confined additive(TCA)printing technology was presented for reliable fabrication of robust circuits.TCA printing technology involves the penetration of adhesive into the functional material,thereby enhancing the mechanical robustness of the circuits,allowing them to maintain their electrical performance despite the presence of external damaging factors such as scratching,abrasion,folding,and high temperatures.For example,herein,the circuits could withstand mechanical abrasion at temperatures as high as 350°C without compromising electrical properties.Benefiting from the confines of template,the printed circuits achieved resolutions of up to 300 nm,suitable for various materials such as P(VDF-TrFE),MWCNTs,and AgNPs,which enabled the multi-material self-aligned fabrication.Furthermore,the versatility of TCA printing was presented by fabricating circuits on arbitrary substrates,and realizing various devices,such as conformal temperature/humidity sensing system and epidermal ultra-thin energy storage system.These applications present the significant potential of TCA printing in fabricating intelligent devices.

关 键 词：PRINTING TEMPLATE CONFORMAL 

分 类 号：TB383[一般工业技术—材料科学与工程] TN305[电子电信—物理电子学]