Journal
NANO ENERGY
Volume 9, Issue -, Pages 121-127Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2014.07.005
Keywords
Nanogenerator; Cover-sheet; Mobile electronics; Low-frequency; Body motion; Vibration
Categories
Funding
- Thousands Talents Program [Z131100006013004, Z131100006013005]
- Beijing City Committee of Science and Technology Projects
- Beijing Natural Science Foundation of China [4141002]
- China Postdoctoral Science Foundation [2014M550031]
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Effectively harvesting ambient energy is a key approach for realizing self-powered systems for portable electronics, wireless sensing, implanted devices, security and so on. It is generally desired that adding a power harvester should not add much weight, volume or additional components to the electronics. In this work, a cover-sheet-based (CS) triboelectric nanogenerator (TENG) is developed based on the protection structure of an electronics, such as a smart phone, for generating power for mobile electronics through conversion of mechanical energy. It consists of a slider and two stators. Each stator comprises of two complementary micrograting electrodes. At a sliding velocity 1 m s(-1), the CS-TENG produces an output current of 88.8 mu A, and a voltage of 2372 V. As a thin cover for mobile electronics, under the hand motions, the CS-TENG can light up household light bulbs or directly driving a mobile temperature meter without the use of a battery. In addition, springs are added to make the CS-TENG suitable for scavenging vibration energy from body motion. This study immediately opens the applications of TENG for conventional sensor systems. (C) 2014 Elsevier Ltd. All rights reserved.
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