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3D Printing of Free‐Standing Stretchable Electrodes with Tunable Structure and Stretchability
Author(s) -
Wei Hong,
Li Kai,
Liu Wen Guang,
Meng Hong,
Zhang Pei Xin,
Yan Chao Yi
Publication year - 2017
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.201700341
Subject(s) - fabrication , materials science , electrode , wearable computer , wearable technology , 3d printing , nanotechnology , substrate (aquarium) , stretchable electronics , optoelectronics , electronics , composite material , computer science , electrical engineering , engineering , medicine , chemistry , alternative medicine , oceanography , pathology , embedded system , geology
Free‐standing stretchable electrodes with high stretchability and resistance stability are desired for future wearable electronic applications. However, it is very difficult to achieve high stretchability (typically restricted by the substrate) and meanwhile maintain low resistance change upon stretching. Innovative designs and fabrication strategies need to be developed to meet the required characteristics. We report the successful fabrication of free‐standing wavy elastic electrodes achieving very high stretchability (>300% for PDMS) and outstanding resistance stability (only 5% relative resistance change at 100% strain), simultaneously. We systematically studied designs with different joining angles and shapes to optimize the electrode performances. The 3D free‐standing electrodes with outstanding stretchability and electrical stability has great potential for further optimizations and applications in future stretchable and wearable electronic devices.