Please use this identifier to cite or link to this item:
Title: Constructing highly tribopositive elastic yarn through interfacial design and assembly for efficient energy harvesting and human-interactive sensing
Authors: Bai, Z
He, T 
Zhang, Z 
Xu, Y
Zhang, Z
Shi, Q 
Yang, Y 
Zhou, B
Zhu, M
Guo, J
Lee, C 
Keywords: Tribopositive yarn
Dual charge transfer
Stretchable robustness
Interfacial design/assembly
Issue Date: 1-Apr-2022
Publisher: Elsevier BV
Citation: Bai, Z, He, T, Zhang, Z, Xu, Y, Zhang, Z, Shi, Q, Yang, Y, Zhou, B, Zhu, M, Guo, J, Lee, C (2022-04-01). Constructing highly tribopositive elastic yarn through interfacial design and assembly for efficient energy harvesting and human-interactive sensing. Nano Energy 94 : 106956-106956. ScholarBank@NUS Repository.
Abstract: Fibers/yarns with superior triboelectrification and robust stretchability are considered indispensable building blocks for booming fiber-shaped wearable electronics. Here, a new class of highly tribopositive elastic yarn is developed through an interfacial design and assembly using polyethylene oxide/waterborne polyurethane/alliin composite as stretchable tribomaterial and polyethyleneimine/multiwalled carbon nanotubes/phytic acid polyionic nanomaterial as electrode. The contact triboelectrification and mechanical stretch behaviors of yarn are separately modulated by multiple functional groups coordination and hydrogen bond crosslinking/electrostatic interactions, realizing efficient charge transfer/accumulation capability and stretchable robustness. The optimized yarn TENG with single-electrode mode can deliver a high voltage of 137 V and power density of 2.25 mW/m by varying content of alliin and controlling the thickness of tribocomposite, which is superior to fiber-shaped TENGs reported thus far. Importantly, the device exhibits good electrical output stability and durability in multiple dynamic deformations or long-term service. The yarn can be easily integrated into the stretchable fabric for motion energy harvesting and can also be used as pressure/strain sensor to realize whole-body physiological signals detection and human-interactive sensing in virtual reality space. This work provides feasible proposal for the design of stretchable high-performance fiber TENGs and greatly promotes the advancement in wearable energy/sensing/interactive systems.
Source Title: Nano Energy
ISSN: 2211-2855
DOI: 10.1016/j.nanoen.2022.106956
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
File Description SizeFormatAccess SettingsVersion 
Nanoen-D-21-04324_R2.pdfSubmitted version2.37 MBAdobe PDF


Post-print Available on 01-04-2024


checked on Oct 1, 2022

Page view(s)

checked on Sep 29, 2022


checked on Sep 29, 2022

Google ScholarTM



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.