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Layer-by-layer assembly for ultrathin energy-harvesting films: Piezoelectric and triboelectric nanocomposite films

Title
Layer-by-layer assembly for ultrathin energy-harvesting films: Piezoelectric and triboelectric nanocomposite films
Authors
Lee, SeokminYeom, BongjunKim, YounghoonCho, Jinhan
DGIST Authors
Kim, Younghoon
Issue Date
2019-02
Citation
Nano Energy, 56, 1-15
Type
Article
Article Type
Article
ISSN
2211-2855
Abstract
Energy-harvesting devices such as piezoelectric and triboelectric nanogenerators (NGs), which can convert mechanical energy into electricity, are under development to be combined with various electronics. In particular, the rapid progress in microscale electronics such as nanorobotics or microelectromechanical devices has strongly increased the demand for ultrathin film devices. Therefore, the thickness, highly uniform structure, chemical composition, interfacial adhesion/interactions, and electrical performance of electrically active films should be carefully considered for high-performance ultrathin energy-harvesting devices. This review focuses on how layer-by-layer (LbL) assembly as a kind of thin film technology can be effectively applied to ultrathin piezoelectric and triboelectric films, and furthermore enhance device performance. First, we introduce the basics of various LbL assemblies using electrostatic, hydrogen-bonding, and covalent-bonding interactions. Then, the LbL-assembly-assisted piezoelectric and triboelectric NGs reported to date are reviewed. Finally, we briefly present perspectives on the direction of LbL assembly for the realization of various ultrathin piezoelectric and triboelectric NGs with high performance. © 2018 The Author(s)
URI
http://hdl.handle.net/20.500.11750/9465
DOI
10.1016/j.nanoen.2018.11.024
Publisher
Elsevier BV
Related Researcher
Files:
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Collection:
Convergence Research Center for Solar Energy1. Journal Articles


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