Flexible, Self-Poled and Ultra-Sensitive Lead-Free Piezocomposite Nanogenerator for Biomechanical Energy Harvesting
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
Mechanical energy harvesting using piezoelectric nanogenerators (PNGs) offer an attractive solution for driving low-power portable devices and self-powered electronic systems. Here, we designed an eco-friendly and flexible piezocomposite nanogenerator (c-PNG) based on H2(Zr0.1Ti0.9)3O7 nanowires (HZTO-nw) and Ba0.85Ca0.15Zr0.10Ti0.90O3 multipods (BCZT-mp) as fillers and polylactic acid (PLA) as biodegradable polymer matrix. The effects of the applied stress amplitude, frequency and pressing duration on the electric outputs in the piezocomposite nanogenerator (c-PNG) device are investigated using simultaneous recording of the mechanical input and the electrical outputs. The fabricated c-PNG shows a maximum output voltage, current and volumetric power density of 11.5 V, 0.6 µA, 9.2 mW/cm3, respectively, under cyclic finger imparting. A high-pressure sensitivity of 0.86 V/kPa (equivalent to 3.6 V/N) and ultra-fast response time of 7 ms are obtained in the dynamic pressure sensing. Besides, the c-PNG demonstrates high-stability and durability of the electrical outputs for about three months, and can drive commercial electronics (charging capacitor, glowing light-emitting diodes and powering a calculator). This works reveals that combining 1D and 3D fillers in polymer composite-based PNG could be beneficial in improving the mechanical energy harvesting performances in flexible piezoelectric nanogenerators for application in electronic skin and wearable devices.
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