posted on 2020-06-25, 16:04authored byLong 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.