Ultradurable,freeze-resistant,and healable MXene-based ionic gels for multi-functional electronic skin  

作　　者：Yao Lu Xinyu Qu Siying Wang Ye Zhao Yanfang Ren Wenli Zhao Qian Wang Chencheng Sun Wenjun Wang Xiaochen Dong 

机构地区：[1]Key Laboratory of Flexible Electronics(KLOFE)&Institute of Advanced Materials(IAM),School of Physical and Mathematical Sciences,Nanjing Tech University(NanjingTech),30 South Puzhu Road,Nanjing 211816,China [2]School of Physical Science and Information Technology,Liaocheng University,Liaocheng 252059,China [3]School of Electronic and Information Engineering,Changshu Institute of Technology,Changshu 215500,China

出　　处：《Nano Research》2022年第5期4421-4430,共10页纳米研究（英文版）

基　　金：The work was supported by Jiangsu Province Policy Guidance Plan(No.BZ2019014),NSF of Jiangsu Province(No.BK20190688);NSF of the Jiangsu Higher Education Institutions(No.21KJB430039);‘Taishan scholars'construction special fund of Shandong Province.

摘　　要：Hydrogel is a potential matrix material of electronic-skins(E-skins)because of its excellent ductility,tunability,and biocompatibility.However,hydrogel-based E-Skins will inevitably lose their sensing performance in practical applications for water loss,physical damage,and ambient interferences.It remains a challenge to manufacture highly durable gel-based E-skins.Herein,an E-Skin is fabricated by introducing ionic liquids(ILs)into MXene-composited binary polymer network.The obtained ionic gel shows excellent mechanical properties,strong adhesion,and superior tolerance to harsh environments.The E-skin exhibits high sensitivity to both strain and pressure in a wide range of deformations,which enables a monitoring function for various human motions and physiological activities.Importantly,the E-skin shows consistent electrical response after being stored in the open air for 30 days and can be quickly healed by irradiation with 808 nm near-infrared light,originating from the photo-thermal effect induced self-healing acceleration.It is noteworthy that the E-skin also reveals a highly sensitive perception of temperature and near-infrared light,displaying the promising potential applications in the multifunctional flexible sensor.

关 键 词：E-skins MXene environment resistance photothermal effect flexible sensor 

分 类 号：TQ427.2[化学工程]