自极化ZrO2 /聚（偏二氟乙烯-共-六氟丙烯）纳米复合压电纳米发电机和单电极摩擦式纳米发电机，可实现人体运动中的可持续能量收集,Physica Status Solidi (A) - Applications and Materials Science

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自极化ZrO2 /聚（偏二氟乙烯-共-六氟丙烯）纳米复合压电纳米发电机和单电极摩擦式纳米发电机，可实现人体运动中的可持续能量收集
Physica Status Solidi (A) - Applications and Materials Science Pub Date : 2021-02-27 , DOI: 10.1002/pssa.202000695
Md. Minarul Saikh _{1,

2} , Nur Amin Hoque _{1,

3} , Prosenjit Biswas _{1,

4} , Wahida Rahman ₁ , Namrata Das ₁ , Sukhen Das ₁ , Pradip Thakur ₅

Affiliation

压电纳米发电机（PENGs）已成为从低功耗电子设备的生命系统运动中收集能量的最有前途的方法之一。在此，据报道，一种简单的PENG和单电极摩擦电纳米发电机（STENG）具有出色的输出性能。在氧化锆（ZrO ₂）/聚偏二氟乙烯-共-六氟丙烯（PVDF-HFP）纳米复合聚合物中，ZrO ₂充当电活性多晶型物成核剂，并增强介电常数（≈23）。与以前报道的PVDF-HFP辅助原型纳米发电机相比，这种开发的PENG具有出色的压电能量收集性能，具有很高的功率密度，很高的能量转换效率和很高的耐用性。在周期性手指的作用下，PENG表现出较大的开路电压≈120V和短路电流≈1.95μA，具有高功率密度≈7091μWcm ^-3。制成的柔性PENG能够瞬间点亮通过桥式整流器并联连接的市售55个蓝色发光二极管。还观察到了较高的电容器充电性能，例如仅在17 s的时间间隔内即可将2.2μF电容器充电至3.5V。由这种复合膜制成的基于单电极的TENG在手指触摸下也显示出显着的输出电压≈7V。

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Self‐Polarized ZrO2/Poly(vinylidene fluoride‐co‐hexafluoropropylene) Nanocomposite‐Based Piezoelectric Nanogenerator and Single‐Electrode Triboelectric Nanogenerator for Sustainable Energy Harvesting from Human Movements

Piezoelectric nanogenerators (PENGs) have been emerged as one of the most promising approach for harvesting energy from the movement of living system for low‐power electronic devices. Herein, a simple PENG and single‐electrode triboelectric nanogenerator (STENG) are reported that execute tremendous output performance. In zirconium oxide (ZrO₂)/poly(vinylidene fluoride‐co‐hexafluoropropylene) (PVDF‐HFP) nanocomposite polymer, ZrO₂ acts as the nucleating agents for electroactive polymorph nucleation and also enhances the dielectric constant (≈23). Compared with previously reported PVDF‐HFP‐assisted prototype nanogenerators, this developed PENG exhibits excellent piezoelectric energy‐harvesting performance with very high power density, high energy conversion efficiency and high durability. The PENG exhibits a large value of open‐circuit voltage ≈120 V and short‐circuit current ≈1.95 μA under periodic finger imparting with high power density ≈7091 μW cm⁻³. Fabricated flexible PENG is capable to instantaneously light up commercially available 55 number of blue light emitting diode connected in parallel connection through bridge rectifier. High capacitor charging performance is also observed, such as 2.2 μF capacitor charged up to 3.5 V, in just 17 s time interval. Single‐electrode‐based TENG fabricated by this composite film also shows remarkable output voltage ≈7 V under finger touch.

更新日期：2021-05-05

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