Author(s): Zhao, J (Zhao, Jiang); Xiao, Y (Xiao, Yu); Yang, W (Yang, Wei); Zhang, SC (Zhang, Shaochun); Wang, HN (Wang, Huining); Wang, Q (Wang, Qiang); Sun, ZY (Sun, Zhaoyang); Li, WJ (Li, Wenjie); Gao, M (Gao, Min); Wang, ZF (Wang, Zefeng); Xu, Y (Xu, Yun); Chen, HM (Chen, Huamin); Wang, J (Wang, Jun)

Source: ADVANCED MATERIALS TECHNOLOGIES DOI: 10.1002/admt.202201769 Early Access Date: JAN 2023

Abstract: Stretchable triboelectric nanogenerator (STENG) has become the research hotspots in flexible power supply, which is indispensable in intelligent wearable electronics. In this work, an ultrastretchable Ecoflex/porous carbon-based STENG (EP-STENG) is presented for gesture recognition application. Due to the ultrahigh stretchability of Ecoflex (570%) and high conductivity of porous carbon, the EP thin film acts as an excellent stretchable electrode under various deformations. In addition, the output performance of the EP-STENG can enhance by adjusting the concentration of porous carbon. At a mass fraction of 0.28 wt%, the EP-STENG reaches the optimal output performance. This is due to the appropriate conductive networks and strong trapping effect. Surprisingly, the performance of the EP-STENG still remains 70% at a stretching strain of 177%, which makes it a promising wearable sensor for human-machine interaction. Finally, the EP-STENG-based stretchable sensor array can acquire gesture signal of the fingers, which can control the mechanical hand to make corresponding actions. The proposed ultrastretchable EP-STENG can promote the development of intelligent wearable system and flexible electronics.

Accession Number: WOS:000919028000001

Author Identifiers:

Author        Web of Science ResearcherID        ORCID Number

zhang, shaochun                  0000-0002-0082-163X

Yu, Xiao                  0000-0002-6947-3178

ISSN: 2365-709X

Full Text: https://onlinelibrary.wiley.com/doi/10.1002/admt.202201769