American Chemical Society
nl0c01987_si_005.mp4 (14.7 MB)

Manipulating Relative Permittivity for High-Performance Wearable Triboelectric Nanogenerators

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posted on 2020-06-25, 16:04 authored by Long Jin, Xiao Xiao, Weili Deng, Ardo Nashalian, Daren He, Vidhur Raveendran, Cheng Yan, Hai Su, Xiang Chu, Tao Yang, Wen Li, Weiqing Yang, Jun Chen
As the world marches into the era of the Internet of Things (IoT), the practice of human health care is on the cusp of a revolution, driven by an unprecedented level of personalization enabled by a variety of wearable bioelectronics. A sustainable and wearable energy solution is highly desired , but challenges still remain in its development. Here, we report a high-performance wearable electricity generation approach by manipulating the relative permittivity of a triboelectric nanogenerator (TENG). A compatible active carbon (AC)-doped polyvinylidene fluoride (AC@PVDF) composite film was invented with high relative permittivity and a specific surface area for wearable biomechanical energy harvesting. Compared with the pure PVDF, the 0.8% AC@PVDF film-based TENG obtained an enhancement in voltage, current, and power by 2.5, 3.5, and 9.8 times, respectively. This work reports a stable, cost-effective, and scalable approach to improve the performance of the triboelectric nanogenerator for wearable biomechanical energy harvesting, thus rendering a sustainable and pervasive energy solution for on-body electronics.