Modulation of surface physics and chemistry in triboelectric energy harvesting technologies

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Mechanical energy harvesting technology converting mechanical energy wasted in our surroundings to electrical energy has been regarded as one of the critical technologies for self-powered sensor network and Internet of Things (IoT). Although triboelectric energy harvesters based on contact electrification have attracted considerable attention due to their various advantages compared to other technologies, a further improvement of the output performance is still required for practical applications in next-generation IoT devices. In recent years, numerous studies have been carried out to enhance the output power of triboelectric energy harvesters. The previous research approaches for enhancing the triboelectric charges can be classified into three categories: i) materials type, ii) device structure, and iii) surface modification. In this review article, we focus on various mechanisms and methods through the surface modification beyond the limitations of structural parameters and materials, such as surficial texturing/patterning, functionalization, dielectric engineering, surface charge doping and 2D material processing. This perspective study is a cornerstone for establishing next-generation energy applications consisting of triboelectric energy harvesters from portable devices to power industries. [GRAPHICS] .
Publisher
TAYLOR & FRANCIS LTD
Issue Date
2019-12
Language
English
Article Type
Review
Citation

SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS, v.20, no.1, pp.758 - 773

ISSN
1468-6996
DOI
10.1080/14686996.2019.1631716
URI
http://hdl.handle.net/10203/263861
Appears in Collection
MS-Journal Papers(저널논문)
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