Organo-Lead Halide Perovskite Induced Electroactive β-Phase in Porous PVDF Films: An Excellent Material for Photoactive Piezoelectric Energy Harvester and Photodetector.
Organo-Lead Halide Perovskite Induced Electroactive β-Phase in Porous PVDF Films: An Excellent Material for Photoactive Piezoelectric Energy Harvester and Photodetector.
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DOI：
10.1021/acsami.7b17408
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发表时间：
2018-01
影响因子：
9.5
通讯作者：
A. Sultana;Priyabrata Sadhukhan;Md. Mehebub Alam;Sachindranath Das;T. Middya;D. Mandal
中科院分区：
文献类型：
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作者：
A. Sultana;Priyabrata Sadhukhan;Md. Mehebub Alam;Sachindranath Das;T. Middya;D. Mandal
多孔聚偏氟乙烯(β)复合膜中的甲基碘化铵铅(CH3NH3PbI3)包埋聚偏氟乙烯(PVDf)复合膜是一种优良的能量采集器和光电探测器材料。MAPI能够使聚偏氟乙烯中高达91%的电活性相成核，使其适用于压电基机械能量采集器(PEHS)、传感器和执行器。在简单的手指触摸运动下，用MPC薄膜制备的聚乙二醇乙二醇酯可以产生压电能。此外，MPC薄膜在非单色光的照射下具有光敏性能的可行性也为其作为有机光电探测器的应用奠定了基础。此外，在基于MPC的光电探测器(PD)中观察到了快速的上升时间和光照下电流的瞬时增加，这表明它在高效光活性器件中具有潜在的应用价值。利用MPC薄膜的光敏性和电活性，研制了一种新型的独立式自供电柔性光敏压电能量采集器(PPEH)。PPEH同时具有机械能量采集和可见光探测的能力，在压电光电子技术中具有广阔的应用前景。
Methylammonium lead iodide (CH3NH3PbI3) (MAPI)-embedded β-phase comprising porous poly(vinylidene fluoride) (PVDF) composite (MPC) films turns to an excellent material for energy harvester and photodetector (PD). MAPI enables to nucleate up to ∼91% of electroactive phase in PVDF to make it suitable for piezoelectric-based mechanical energy harvesters (PEHs), sensors, and actuators. The piezoelectric energy generation from PEH made with MPC film has been demonstrated under a simple human finger touch motion. In addition, the feasibility of photosensitive properties of MPC films are manifested under the illumination of nonmonochromatic light, which also promises the application as organic photodetectors. Furthermore, fast rising time and instant increase in the current under light illumination have been observed in an MPC-based photodetector (PD), which indicates of its potential utility in efficient photoactive device. Owing to the photoresponsive and electroactive nature of MPC films, a new class of stand-alone self-powered flexible photoactive piezoelectric energy harvester (PPEH) has been fabricated. The simultaneous mechanical energy-harvesting and visible light detection capability of the PPEH is promising in piezo-phototronics technology.