摘要
为了开发具有优良性能的智能伪装隐身器件,使用预模板法制备了柔性透明电极.以叶脉纤维为预模板,在其表面沉积金属碳化物/氮化物(MXene),从而开发了具有透明有序导电网络结构的透明电极.叶脉表面的羟基基团与导电材料的表面活性基团的相互作用极大地提高了导电材料与基底的表面结合力.此柔性透明电极在透光率为80.6%时,方阻为11.4Ω/sq,有效地避免了光电特性之间的“权衡”效应,且在1000次弯曲循环下电阻几乎保持不变,具备良好的耐久性和稳定性.将此透明电极成功制备透明电容式传感器,其灵敏度可达0.09 kPa^(-1),且在1000次循环之后相对电容基本保持不变,具有出色的传感性能和耐久性,可以在人难以察觉的状态下监测人体运动信号.此柔性透明电极和透明电容传感器在可穿戴伪装电子领域具有巨大潜力.
With the continuous development of intelligent wearable devices,flexible electronic products that can perform intelligent camouflage and stealth have attracted more and more attention,among which flexible transparent electrodes play an increasingly important role in the field of intelligent camouflage and stealth devices.Biomimetic to nature is an ideal choice to self-assemble micro-units into macro-structure assembly.In nature,most leaf veins have hierarchical interconnected structures.These different levels of veins form an interconnected interwoven network structure.In order to develop intelligent camouflage devices with excellent performance,the flexible transparent electrodes were prepared by pretemplate method inspired by leaf veins.The transparent electrodes were developed with a transparent conductive mesh structure by self-assembling metal carbide/nitride(MXene)on the surface of the vein fibers.The interaction between the hydroxyl groups on the surfaceof the veins and the active groups on the surface of the conductive material greatly improves the surface bonding strength of the conductive material and the substrate.While maintaining high transparency,the transparent electrode induces MXene to evenly construct ordered conductive network on the flexible vein,effectively avoiding the“trade off”effect between photoelectric characteristics,and has excellent stability and durability.The FTEs with a sheet resistance of 11.4Ω/sq,a transmittance of 80.6%,have excellent mechanical flexibility with a negligible increase in sheet resistance even under 1000 cyclic bending tests.The transparent capacitive sensor was successfully prepared with the transparent electrode,with the sensitivity up to 0.09 kPa^(−1),and the relative capacitance remains essentially unchanged after 1000 cycles.The transparent capacitance sensor has good pressure detection and non-contact monitoring function.As an intelligent stealth camouflage electronic device,it has excellent sensing performance and stability,and can monitor human mov
作者
范强
苗锦雷
刘旭华
左杏薇
张文枭
田明伟
朱士凤
曲丽君
Qiang Fan;Jin-lei Miao;Xu-hua Liu;Xing-wei Zuo;Wen-xiao Zhang;Ming-wei Tian;Shi-feng Zhu;Li-jun Qu(College of Textiles and Clothing,Qingdao Unversity,Qingdao 266071)
出处
《高分子学报》
SCIE
CAS
CSCD
北大核心
2022年第6期617-625,共9页
Acta Polymerica Sinica
基金
山东省重大科技创新工程项目(项目号2019JZZY010340)
山东省重点研发计划项目(项目号20019GGX102022)
中国博士后科学基金(基金号2020M671994)
山东省自然科学基金(基金号ZR2020QE081)
山东省重大科技创新工程项目(项目号2019JZZY010335)资助.
关键词
柔性透明电极
有序导电网络
柔性透明电容传感器
智能隐形伪装
运动监测
Flexible transparent electrode
Ordered conductive network
Flexible transparent capactive sensor
Intelligent invisibility camouflage
Movement monitoring
