Energy harvesting and human motion sensing of a 2D piezoelectric hybrid organic–inorganic perovskite

IF 5.3 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

APL Materials Pub Date : 2024-09-19 DOI:10.1063/5.0233435

Li-Jun Ji, Chen Zhao, Tian-Yi Yang, Hai-Run Yang, Muhammad Azeem, Zi-Ying Li, Rui Feng, Guo-Qiang Feng, Sha Li, Wei Li

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引用次数: 0

Abstract

Two-dimensional (2D) hybrid organic–inorganic perovskites (HOIPs) have garnered plentiful attention as a result of their exceptional structural flexibility and multiple applications. In this study, we present a 2D HOIP (CHA)2PbBr4 (CHA = cyclohexylamine), for its potential applications in piezoelectricity, such as strain energy sensing and harvesting. Flexible composite films of (CHA)2PbBr4/PDMS (PDMS = polydimethylsiloxane) with a sequence of weight ratios (0, 5, 10, 15, 20 wt %) of (CHA)2PbBr4 were fabricated to analyze the energy harvesting properties. Experimental results demonstrated that a device with 15% composition exhibited the most optimized performance in energy harvesting, producing a peak magnitude of output voltage of 11.6 V, a short-circuit current of 0.38 µA, and a power density of 6.77 µW/cm2, along with notable stability exceeding 4000 cycles. Furthermore, this device exhibited high sensitivity in monitoring many varieties of human movements, such as finger bending and tapping, elbow bending, and gentle foot stamping. The findings of this study indicate that this 2D HOIP holds significant potential for use in flexible sensing and intelligent wearable devices.

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二维压电混合有机-无机包晶的能量采集和人体运动传感

二维（2D）有机-无机杂化过氧化物（HOIP）因其优异的结构灵活性和多种应用而备受关注。在本研究中，我们介绍了一种二维 HOIP (CHA)2PbBr4（CHA = 环己基胺），以了解其在压电方面的潜在应用，如应变能量传感和收集。为了分析(CHA)2PbBr4的能量收集特性，我们制作了(CHA)2PbBr4/PDMS（PDMS=聚二甲基硅氧烷）的柔性复合薄膜，其中(CHA)2PbBr4的重量比依次为0、5、10、15、20 wt %。实验结果表明，含有 15% 成分的器件在能量收集方面表现出最佳性能，可产生 11.6 V 的峰值输出电压、0.38 µA 的短路电流和 6.77 µW/cm2 的功率密度，并且具有超过 4000 次循环的显著稳定性。此外，该设备在监测多种人体运动（如手指弯曲和敲击、肘部弯曲和轻微跺脚）时表现出了高灵敏度。这项研究结果表明，这种二维 HOIP 在柔性传感和智能可穿戴设备方面具有巨大的应用潜力。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

APL Materials NANOSCIENCE & NANOTECHNOLOGYMATERIALS SCIE-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

9.60

自引率

3.30%

发文量

199

审稿时长

2 months

期刊介绍： APL Materials features original, experimental research on significant topical issues within the field of materials science. In order to highlight research at the forefront of materials science, emphasis is given to the quality and timeliness of the work. The journal considers theory or calculation when the work is particularly timely and relevant to applications. In addition to regular articles, the journal also publishes Special Topics, which report on cutting-edge areas in materials science, such as Perovskite Solar Cells, 2D Materials, and Beyond Lithium Ion Batteries.