驱动无线传感器的热释电纳米发电机

IF 9.1 1区材料科学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Nano Letters Pub Date : 2012-11-07 DOI:10.1021/nl303755m

Ya Yang, Sihong Wang, Yan Zhang, Zhong Lin Wang*

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引用次数: 220

摘要

我们展示了一种基于锆钛酸铅(PZT)薄膜的热释电纳米发电机(PENG)，其热释电系数约为?80 nC/cm2K。当温度以0.2 K/s的速率变化45 K时，PENG的输出开路电压和短路电流密度分别达到22 V和171 nA/cm2，对应的最大功率密度为0.215 mW/cm3。为理解PENG的高输出电压，开发了一个详细的理论。单个电输出脉冲可以直接驱动液晶显示器(LCD)超过60秒。锂离子电池在不同的工作频率下由PENG充电，用于驱动绿色发光二极管(LED)。所演示的PENG显示了在无线传感器中的潜在应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Pyroelectric Nanogenerators for Driving Wireless Sensors

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Pyroelectric Nanogenerators for Driving Wireless Sensors

We demonstrate a pyroelectric nanogenerator (PENG) based on a lead zirconate titanate (PZT) film, which has a pyroelectric coefficient of about ?80 nC/cm²K. For a temperature change of 45 K at a rate of 0.2 K/s, the output open-circuit voltage and short-circuit current density of the PENG reached 22 V and 171 nA/cm², respectively, corresponding to a maximum power density of 0.215 mW/cm³. A detailed theory was developed for understanding the high output voltage of PENG. A single electrical output pulse can directly drive a liquid crystal display (LCD) for longer than 60 s. A Li-ion battery was charged by the PENG at different working frequencies, which was used to drive a green light-emitting diode (LED). The demonstrated PENG shows potential applications in wireless sensors.

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来源期刊

Nano Letters 工程技术-材料科学：综合

CiteScore

16.80

自引率

2.80%

发文量

1182

审稿时长

1.4 months

期刊介绍： Nano Letters serves as a dynamic platform for promptly disseminating original results in fundamental, applied, and emerging research across all facets of nanoscience and nanotechnology. A pivotal criterion for inclusion within Nano Letters is the convergence of at least two different areas or disciplines, ensuring a rich interdisciplinary scope. The journal is dedicated to fostering exploration in diverse areas, including: - Experimental and theoretical findings on physical, chemical, and biological phenomena at the nanoscale - Synthesis, characterization, and processing of organic, inorganic, polymer, and hybrid nanomaterials through physical, chemical, and biological methodologies - Modeling and simulation of synthetic, assembly, and interaction processes - Realization of integrated nanostructures and nano-engineered devices exhibiting advanced performance - Applications of nanoscale materials in living and environmental systems Nano Letters is committed to advancing and showcasing groundbreaking research that intersects various domains, fostering innovation and collaboration in the ever-evolving field of nanoscience and nanotechnology.