Superhydrophobic Pet-Cu-Ni@Mwcnt with Electropositive Layer to Enhance the Electrical Properties of Teng for Human Wearable Sensors

作     者：Yu, Shuguo Li, Peng Ding, Hanqin Shi, Fei Li, Xingang 

作者机构：Xinjiang Key Laboratory of Solid State Physics and Devices Xinjiang University Urumqi830046 China School of Physical Science and Technology Xinjiang University Urumqi830046 China School of Computer Science and Technology Xinjiang University Urumqi830046 China Key Laboratory of Signal Detection and Processing Xinjiang University Urumqi830046 China 

出 版 物：《SSRN》 

年 卷 期：2024年

核心收录：

主　　题：Multiwalled carbon nanotubes (MWCN) 

摘      要：Flexible triboelectric nanogenerator (TENG) are ideal for sustainable and wearable electronics applications due to their excellent performance and non-toxicity. In this study, multiwalled carbon nanotubes (MWCNT) loaded plain anti-radiation shielding cloth (PET-Cu-Ni) electropositive layer (PM) is synthesized, and then assembled with PDMS to make a superhydrophobicity and flexible PM-TENG. The alternating fabric-like PET in PET-Cu-Ni increases the contact area at the tribo-electrode interface, and the bimetallic atomic Cu-Ni layer increases the electrical conductivity and electron transfer capability of triboelectric material. MWCNT surface itself has a positive charge, which promotes the generation of triboelectric charges, and the deposition of the MWCNT layer also increases the contact area of interface. MWCNT with p-type conductive forms a metal-semiconductor junction with the Cu-Ni layer, and MWCNT layer acts as a hole-transporting layer that affects triboelectric charge separation to reduces triboelectric charge loss, which greatly improves the output current of TENG. The superhydrophobic PM prevents the loss of electrostatic charge on TENG surface to the extent that it promotes stable performance output. At 5 Hz operating frequency, the short-circuit current of PM-TENG is boosted to 13.7 μA, and the open-circuit voltage and power reach 231 V and 2.8 mW, respectively. Integration of PM-TENG as a power source with the SnS2 humidity sensor constitutes TENG-driven sensor, which realizes relative humidity detection with high sensitivity and fast response recovery. In addition, a remote human-machine interface (HMI) system is constructed by integrating PM-TENG, circuit module, and APP, which realizes real-time monitoring of finger curvature and promotes the development of biomedicine. © 2024, The Authors. All rights reserved.