Modulation of surface physics and chemistry in triboelectric energy harvesting technologies

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 electrifi...

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Bibliographic Details
Published in:Science and technology of advanced materials 2019-12, Vol.20 (1), p.758-773
Main Authors: Lee, Bo-Yeon, Kim, Dong Hyun, Park, Jiseul, Park, Kwi-Il, Lee, Keon Jae, Jeong, Chang Kyu
Format: Article
Language:English
Subjects:
202 Dielectrics / Piezoelectrics / Insulators
206 Energy conversion / transport / storage / recovery
212 Surface and interfaces
50 Energy materials
Charge materials
Electric contacts
Electrification
Energy
Energy harvesting
Focus on Nanogenerators
Internet of Things
nanogenerator
Parameter modification
Portable equipment
Surface charge
surface engineering
Texturing
tribo-electrification
triboelectric
Two dimensional materials
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Summary: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.
ISSN:1468-6996
1878-5514
DOI:10.1080/14686996.2019.1631716