Nat. Commun.: Large-area, untethered, metamorphic, and omnidirectionally stretchable multiplexing self-powered triboelectric skins

Title：

Large-area, untethered, metamorphic, and omnidirectionally stretchable multiplexing self-powered triboelectric skins

Authors：

Beibei Shao^1,2#, Ming-Han Lu^4#, Tai-Chen Wu⁴, Wei-Chen Peng⁴, Tien-Yu Ko⁴, Yung-Chi Hsiao⁴, Jiann-Yeu Chen⁵, Baoquan Sun^1,2,6*, Ruiyuan Liu^2,3*, Ying-Chih Lai^4,5,7*

Institutions：

¹Institute of Functional Nano & Soft Materials (FUNSOM), Suzhou 215006, P. R. China

²Jiangsu Key Laboratory of Advanced Negative Carbon Technologies, Soochow University, Suzhou 215006, P. R. China

³College of Energy, Soochow University, Suzhou 215006, P. R. China.

⁴Department of Materials Science and Engineering, National Chung Hsing University, Taichung, 40227, Taiwan

⁵Innovation and Development Center of Sustainable Agriculture, i-Center for Advanced Science and Technology, National Chung Hsing University, Taichung, 40227, Taiwan

⁶Macau Institute of Materials Science and Engineering MUST-SUDA Joint Research Center for Advanced Functional Materials Macau University of Science and Technology Macau 999078, P. R. China

⁷Department of Physics, National Chung Hsing University, Taichung, 40227, Taiwan

Abstract：

Large-area metamorphic stretchable sensor networks are desirable in haptic sensing and next-generation electronics. Triboelectric nanogenerator-based self-powered tactile sensors in single-electrode mode constitute one of the best solutions with ideal attributes. However, their large-area multiplexing utilizations are restricted by severe misrecognition between sensing nodes and high-density internal circuits. Here, we provide an electrical signal shielding strategy delivering a large-area multiplexing self-powered untethered triboelectric electronic skin (UTE-skin) with an ultralow misrecognition rate (0.20%). An omnidirectionally stretchable carbon black-Ecoflex composite-based shielding layer is developed to effectively attenuate electrostatic interference from wirings, guaranteeing low-level noise in sensing matrices. UTE-skin operates reliably under 100% uniaxial, 100% biaxial, and 400% isotropic strains, achieving high-quality pressure imaging and multi-touch real-time visualization. Smart gloves for tactile recognition, intelligent insoles for gait analysis, and deformable human-machine interfaces are demonstrated. This work signifies a substantial breakthrough in haptic sensing, offering solutions for the previously challenging issue of large-area multiplexing sensing arrays.

IF：

17.694

Link：

https://www.nature.com/articles/s41467-024-45611-6