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The Adhesion‐Enhanced Contact Electrification and Efficiency of Triboelectric Nanogenerators
Author(s) -
Lapčinskis Linards,
Mālnieks Kaspars,
Blūms Juris,
Knite Māris,
Oras Sven,
Käämbre Tanel,
Vlassov Sergei,
Antsov Mikk,
Timusk Martin,
Šutka Andris
Publication year - 2020
Publication title -
macromolecular materials and engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.913
H-Index - 96
eISSN - 1439-2054
pISSN - 1438-7492
DOI - 10.1002/mame.201900638
Subject(s) - triboelectric effect , contact electrification , materials science , adhesion , nanogenerator , electrification , polymer , composite material , contact area , surface roughness , adhesive , nanotechnology , surface finish , surface energy , electrical engineering , electricity , layer (electronics) , piezoelectricity , engineering
In the present work, the contact electrification of polymers that differ in adhesion strength is studied. Electrical current is measured along with adhesion in macroscale contacting‐separation experiments. Additionally, local adhesion and roughness are studied with atomic force microscopy to get deeper insight into relations between surface properties and electrification. Measurements reveal that higher surface charge is formed on more adhesive surfaces, thus confirming covalent bond cleavage as a mechanism for contact electrification of polymers. Investigated materials possess enhanced contact electrification making them attractive candidates for the conversion of mechanical energy to electrical in triboelectric nanogenerator devices.