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A Study of Contact Electrification Process on PVDF–Metal Interface: Effect of β Phase Composition.

Authors :
Amangeldinova, Yerkezhan
Oh, Jin‐Woo
Lee, Wonho
Shin, Dong‐Myeong
Hwang, Yoon‐Hwea
Source :
Advanced Materials Interfaces; 2/23/2024, Vol. 11 Issue 6, p1-9, 9p
Publication Year :
2024

Abstract

Recently, triboelectric nanogenerators (TENGs) are getting considerable attention as an energy harvesting tool that can convert random mechanical energy into electricity due to the wide material selection, low cost, and easy fabrication. TENGs work by contact electrification on the interface and electrostatic induction on the electrodes when two surfaces contact and separate. Herein, the study of the contact electrification process on the metal–polyvinylidene difluoride (PVDF) interface is conducted focusing on the effect of β phase content on the electrical properties of the PVDF films. It is found through the EFM and KPFM surface electrical studies that a higher β phase promotes stronger electrostatic interactions and enhances electron‐cloud overlap with the metal coated cantilever tip that leads to higher amount of charge transfer. Additionally, there is overall enhancement of the TENGs electric output performance for a higher β phase containing PVDF films and the maximum electric output of 8.1 V and 12.2 nA is obtained for the TENG made with 79% β phase PVDF film. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
21967350
Volume :
11
Issue :
6
Database :
Complementary Index
Journal :
Advanced Materials Interfaces
Publication Type :
Academic Journal
Accession number :
175639247
Full Text :
https://doi.org/10.1002/admi.202300727