Skin-inspired gradient ionogels induced by electric field for ultrasensitive and ultrafast-responsive multifunctional ionotronics

文献情報

出版日 2023-11-28

DOI 10.1039/D3TA05723B

インパクトファクター 12.732

著者

Min Xu, Xuchao Shen, Shuaijie Li, Hongnan Zhu, Yan Cheng, Hongying Lv, Zhuoer Wang, Cunguang Lou, Hongzan Song

原文を見る

要旨

Ionogels have garnered great attention for fabricating flexible soft ionotronics as they can mimic human skin that responds to external stimuli. However, the low detection sensitivity and limited responsiveness as well as the complicated fabrication process significantly limit their wide applications. Herein, a skin-inspired stretchable, compressible, self-adhesive ionogel with gradient and hierarchical microstructures and properties has been prepared by a one-step electric-field assisted photo-polymerization method. By regulating the ions of ionic liquids (ILs) and poly(ionic liquid)s (PILs), these PIL ionogels also exhibit good adjustable hydrophilicity/hydrophobicity and environmental adaptability. Based on the gradient conductivity capacity along with the gradient mechanical structure, the gradient ionogel-based flexible ionotronic shows high sensitivity up to 1.0 kPa−1 over a wide range of detection up to 400 kPa, low minimum detection (0.15 Pa), fast response time (8 ms), wide working temperature range (−85 to 360 °C), and good durability (5000 cycles). More importantly, the developed high-resolution pressure-sensing array can accurately detect the contour and output three-dimensional pressure distribution maps. Furthermore, advanced soft ionotronic sensors with multimodal sensation capabilities are further designed, which can detect various motions, such as liquid drop sensing, human joint motion detection, and real-time pulse wave monitoring.

掲載誌

Journal of Materials Chemistry A

CiteScore: 19.5

自己引用率: 4.7%

年間論文数: 2211

Journal of Materials Chemistry A, B & C cover high quality studies across all fields of materials chemistry. The journals focus on those theoretical or experimental studies that report new understanding, applications, properties and synthesis of materials. The journals have a strong history of publishing quality reports of interest to interdisciplinary communities and providing an efficient and rigorous service through peer review and publication. The journals are led by an international team of Editors-in-Chief and Associate Editors who are all active researchers in their fields. Journal of Materials Chemistry A, B & C are separated by the intended application of the material studied. Broadly, applications in energy and sustainability are of interest to Journal of Materials Chemistry A, applications in biology and medicine are of interest to Journal of Materials Chemistry B, and applications in optical, magnetic and electronic devices are of interest to Journal of Materials Chemistry C. More than one Journal of Materials Chemistry journal may be suitable for certain fields and researchers are encouraged to submit their paper to the journal that they feel best fits for their particular article. Example topic areas within the scope of Journal of Materials Chemistry A are listed below. This list is neither exhaustive nor exclusive. Artificial photosynthesis Batteries Carbon dioxide conversion Catalysis Fuel cells Gas capture/separation/storage Green/sustainable materials Hydrogen generation Hydrogen storage Photocatalysis Photovoltaics Self-cleaning materials Self-healing materials Sensors Supercapacitors Thermoelectrics Water splitting Water treatment