Toward Large-Scale Energy Harvesting by a Nanoparticle-Enhanced Triboelectric Nanogenerator

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• 作者：Guang Zhu ; Zong-Hong Lin ; Qingshen Jing ; Peng Bai ; Caofeng Pan ; Ya Yang ; Yusheng Zhou ; Zhong Lin Wang
• 刊名：Nano Letters
• 出版年：2013
• 出版时间：February 13, 2013
• 年：2013
• 卷：13
• 期：2
• 页码：847-853
• 全文大小：447K
• 年卷期：v.13,no.2(February 13, 2013)
• ISSN：1530-6992

文摘

This article describes a simple, cost-effective, and scalable approach to fabricate a triboelectric nanogenerator (NG) with ultrahigh electric output. Triggered by commonly available ambient mechanical energy such as human footfalls, a NG with size smaller than a human palm can generate maximum short-circuit current of 2 mA, delivering instantaneous power output of 1.2 W to external load. The power output corresponds to an area power density of 313 W/m² and a volume power density of 54鈥?68 W/m³ at an open-circuit voltage of 1200 V. An energy conversion efficiency of 14.9% has been achieved. The power was capable of instantaneously lighting up as many as 600 multicolor commercial LED bulbs. The record high power output for the NG is attributed to optimized structure, proper materials selection and nanoscale surface modification. This work demonstrated the practicability of using NG to harvest large-scale mechanical energy, such as footsteps, rolling wheels, wind power, and ocean waves.

Keywords:

Triboelectric nanogenerator; large-scale; nanoparticle; wind power; ocean wave