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

Seokmin Lee, Bongjun Yeom, Younghoon Kim, Jinhan Cho

Research output: Contribution to journalArticle

1 Citation (Scopus)

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.

Original languageEnglish
Pages (from-to)1-15
Number of pages15
JournalNano Energy
Volume56
DOIs
Publication statusPublished - 2019 Feb 1

Fingerprint

Nanocomposite films
Energy harvesting
Electronic equipment
Microelectromechanical devices
Nanorobotics
Ultrathin films
Electrostatics
Hydrogen bonds
Adhesion
Electricity
Thin films
Chemical analysis

Keywords

  • Ferroelectric nanoparticles
  • Layer-by-layer assembly
  • Piezoelectric film
  • Piezoelectric nanoparticles
  • Surface morphology control
  • Triboelectric film

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Materials Science(all)
  • Electrical and Electronic Engineering

Cite this

Layer-by-layer assembly for ultrathin energy-harvesting films : Piezoelectric and triboelectric nanocomposite films. / Lee, Seokmin; Yeom, Bongjun; Kim, Younghoon; Cho, Jinhan.

In: Nano Energy, Vol. 56, 01.02.2019, p. 1-15.

Research output: Contribution to journalArticle

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