Maximizing piezoelectricity by self-assembled highly porous perovskite–polymer composite films to enable the internet of things,Journal of Materials Chemistry A

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Maximizing piezoelectricity by self-assembled highly porous perovskite–polymer composite films to enable the internet of things
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2020-07-01 , DOI: 10.1039/d0ta03416a
Asif Abdullah Khan _{1,

2,

3,

4} , Md Masud Rana _{1,

2,

3,

4} , Guangguang Huang _{1,

2,

3,

4} , Nanqin Mei _{2,

3,

4,

5} , Resul Saritas _{2,

3,

4,

6} , Boyu Wen _{1,

2,

3,

4} , Steven Zhang _{1,

2,

3,

4} , Peter Voss _{4,

7,

8} , Eihab-Abdel Rahman _{2,

3,

4,

6} , Zoya Leonenko _{2,

3,

4,

5} , Shariful Islam _{4,

7,

8} , Dayan Ban _{1,

2,

3,

4}

Affiliation

There is an urgent demand in the industry for the development of compact, flexible, and sustainable power sources for self-powered internet of things (IoT) micro/nano devices. One of the most promising routes is to harness environmental energy through piezoelectric nanogenerators (PNGs). A novel, self-assembled, highly porous perovskite/polymer (polyvinylidene fluoride (PVDF) in this case) composite film was developed for fabricating high-performance piezoelectric nanogenerators (PNGs). The macroscopic porous structure can significantly enlarge the bulk strain of the piezoelectric composite film, which leads to a ≈5-fold enhancement in the strain-induced piezo potential. In addition, the novel hybrid halide perovskites (HHP)–formamidinium lead bromine iodine (FAPbBr₂I) material can improve the conductivity of the final composite film due to its enhanced permittivity, providing a ≈15-fold amplification of the output current. Using these highly-efficient perovskite/polymer PNGs (P-PNGs), a peak output power density of 10 μW cm⁻² (across a resistance of 7 MΩ) was obtained to run a self-powered integrated wireless electronic node (SIWEN). The P-PNG application was then extended to real-life scenarios including wireless data communication between the nanogenerators and personal electronics, efficient energy harvesting from automobile vibrations and also from biomechanical motion. This P-PNG based on a low-temperature full-solution synthesis approach, may initiate a paradigm shift by opening the realms of flexible PNGs as sustainable power sources.

中文翻译：

通过自组装的高孔钙钛矿-聚合物复合膜最大程度地提高压电性，从而实现物联网

在行业中，迫切需要为自供电的物联网（IoT）微型/纳米设备开发紧凑，灵活和可持续的电源。最有前途的途径之一是通过压电纳米发电机（PNG）利用环境能量。开发了一种新颖的，自组装的，高度多孔的钙钛矿/聚合物（在这种情况下为聚偏二氟乙烯（PVDF））复合膜，用于制造高性能压电纳米发电机（PNG）。宏观的多孔结构可以显着增大压电复合膜的整体应变，从而导致应变诱发的压电势提高约5倍。此外，新型杂化卤化物钙钛矿（HHP）-甲ami溴化碘溴（FAPbBr ₂I）由于其介电常数的提高，材料可以改善最终复合膜的电导率，从而提供约15倍的输出电流放大率。使用这些高效的钙钛矿/聚合物PNG（P-PNG），可获得10μWcm ^-2的峰值输出功率密度（跨7MΩ的电阻），以运行自供电的集成无线电子节点（SIWEN）。然后，P-PNG应用程序扩展到了现实生活中，包括纳米发电机与个人电子设备之间的无线数据通信，从汽车振动以及生物力学运动中有效收集能量。这种基于低温全溶液合成方法的P-PNG，可以通过打开柔性PNG领域作为可持续能源来启动范式转变。

更新日期：2020-07-14

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