6533b7d4fe1ef96bd1261fd3
RESEARCH PRODUCT
Matching the Directions of Electric Fields from Triboelectric and Ferroelectric Charges in Nanogenerator Devices for Boosted Performance
Linards LapčinskisKaspars MālnieksAndris ŠUtkaKaspars PudzsMartins RutkisMartin Timusksubject
0301 basic medicineMaterials sciencePolymers02 engineering and technologyArticle03 medical and health sciencesElectric field:NATURAL SCIENCES:Physics [Research Subject Categories]DevicesNanotechnologySurface chargelcsh:ScienceTriboelectric effectPower densityMultidisciplinarybusiness.industryNanogeneratorElectrostatic induction021001 nanoscience & nanotechnologyFerroelectricityDipole030104 developmental biologyElectromagnetic Field13. Climate actionOptoelectronicsNanoparticleslcsh:Q0210 nano-technologybusinessdescription
Summary Embedding additional ferroelectric dipoles in contacting polymer layers is known to enhance the performance of triboelectricnanogenerator (TENG) devices. However, the influence of dipoles formed between the triboelectric surface charges on two contacting ferroelectric films has been ignored in all relevant studies. We demonstrate that proper attention to the alignment of the distinct dipoles present between two contacting surfaces and in composite polymer/BaTiO3 ferroelectric films can lead to up to four times higher energy and power density output compared with cases when dipole arrangement is mismatched. For example, TENG device based on PVAc/BaTiO3 shows energy density increase from 32.4 μJ m−2 to 132.9 μJ m−2 when comparing devices with matched and mismatched dipoles. The presented strategy and understanding of resulting stronger electrostatic induction in the contacting layers enable the development of TENG devices with greatly enhanced properties.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2020-04-01 | iScience |