Self-Powered Magnetic Sensor Based on a Triboelectric Nanogenerator

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• 作者：Ya Yang ; Long Lin ; Yue Zhang ; Qingshen Jing ; Te-Chien Hou ; Zhong Lin Wang
• 刊名：ACS Nano
• 出版年：2012
• 出版时间：November 27, 2012
• 年：2012
• 卷：6
• 期：11
• 页码：10378-10383
• 全文大小：507K
• 年卷期：v.6,no.11(November 27, 2012)
• ISSN：1936-086X

文摘

Magnetic sensors are usually based on the Hall effect or a magnetoresistive sensing mechanism. Here we demonstrate that a nanogenerator can serve as a sensor for detecting the variation of the time-dependent magnetic field. The output voltage of the sensor was found to exponentially increase with increasing magnetic field. The detection sensitivities for the change and the changing rate of magnetic field are about 0.0363 卤 0.0004 ln(mV)/G and 0.0497 卤 0.0006 ln(mV)/(G/s), respectively. The response time and reset time of the sensor are about 0.13 and 0.34 s, respectively. The fabricated sensor has a detection resolution of about 3 G and can work under low frequencies (<0.4 Hz).

Keywords:

magnetic sensor; triboelectric nanogenerator; self-powered; magnetic field