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Title: Conductive composite fiber with customizable functionalities for energy harvesting and electronic textiles
Authors: Yang, Y 
Xu, B 
Gao, Y 
Li, M 
Issue Date: 27-Oct-2021
Source: ACS applied materials and interfaces, 27 Oct. 2021, v. 13, no. 42, p. 49927-49935
Abstract: A fiber-based triboelectric nanogenerator (F-TENG) is an important technology for smart wearables, where conductive materials and triboelectric materials are two essential components for the F-TENG. However, the different physicochemical properties between conductive metal materials and organic triboelectric materials often lead to interfacial failure problems, which is a great challenge for fabricating high-performance and stable F-TENGs. Herein, we designed a new conductive composite fiber (CCF) with customizable functionalities based on a core-spun yarn coating approach, which was applicable for a fiber-based TENG (CCF-TENG). By combing a core-spun method and a coating approach, triboelectric materials could be better incorporated on the surface of conductive fibers with the staple fibers to form a new composite structure with enhanced interfacial properties. The applicability of the method has been studied using different conductive and staple fibers and coating materials as well as different CCF diameters. As a demonstration, the open-circuit voltage and power density of the CCF-TENG reached 117 V and 213 mW/m2, respectively. Moreover, a 2D fabric TENG was woven and used as a wearable sensor for motion detection. This work provided a new method for 1D composite fibers with customizable functionalities for the applications in smart wearables.
Keywords: Conductive composite fiber
Core-spun yarn
Self-powered system
Smart electronic textiles
Triboelectric nanogenerator
Publisher: American Chemical Society
Journal: ACS applied materials and interfaces 
ISSN: 1944-8244
EISSN: 1944-8252
DOI: 10.1021/acsami.1c14273
Rights: © 2021 American Chemical Society
This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Applied Materials and Interfaces, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see ACS Applied Materials and Interfaces is available at
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