Electrification based devices with encapsulated liquid for energy harvesting, multifunctional sensing, and self-powered visualized detection

Electrification between a solid and a liquid is a common but complex phenomenon which can both benefit and cause problems for industry, the laboratory, and our daily life. Here, utilizing this phenomenon, we designed a multifunctional device which can harvest vibration energy, sense mechanical/chemi...

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Bibliographic Details
Published in:Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2015-03, Vol.3 (14), p.7382-7388
Main Authors: Han, Mengdi, Yu, Bocheng, Qiu, Guolin, Chen, Haotian, Su, Zongming, Shi, Mayue, Meng, Bo, Cheng, Xiaoliang, Zhang, Haixia
Format: Article
Language:English
Subjects:
Devices
Electric potential
Electric power generation
Electrification
Encapsulation
Leakage
Liquids
Sustainability
Vibration
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Summary:Electrification between a solid and a liquid is a common but complex phenomenon which can both benefit and cause problems for industry, the laboratory, and our daily life. Here, utilizing this phenomenon, we designed a multifunctional device which can harvest vibration energy, sense mechanical/chemical changes, and intuitively detect wobble/leakage of liquid. Under low frequency, the device can generate room mean square voltages higher than 10 V and an average power of 0.9 mu W, which is a great enhancement compared to previous liquid involved devices. Moreover, the device was demonstrated as a multifunctional active mechanical/chemical sensor for detecting the rotation and in situ measuring concentration in a specific range, and it has high stability due to the encapsulated environment. Finally, the device was utilized as a self-powered visualized system for detecting the wobble/leakage of the encapsulated liquid using itself as the energy source, which not only simplifies the measurement process, but also makes the total system power-free.
ISSN:2050-7488
2050-7496
DOI:10.1039/c4ta06168c