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On the origin of enhanced power output in ferroelectric polymer-based triboelectric nanogenerators: Role of dipole charge versus piezoelectric charge by Dong Geun Jeong; Young Joon Ko; Jong Hun Kim; Dae Sol Kong; Ying Chieh Hu; Dong Woo Lee; Seong Hyun Im; Jeongwan Lee; Mi Suk Kim; Gwan-Hyoung Lee; Chang Won Ahn; Joung Real Ahn; Minbaek Lee; Jeong Young Park; Jong Hoon Jung is a Engineering article available to read on EtoBox.

What is On the origin of enhanced power output in ferroelectric polymer-based triboelectric nanogenerators: Role of dipole charge versus piezoelectric charge about?

While ferroelectric polymer-based triboelectric nanogenerators (FE-TENGs) have been regarded as one of the most efficient mechanical energy harvesting devices, their fundamental mechanism is still debated. Here, we propose a dipole charge-shifted work function as the main origin of enhanced performance rather than a piezoelectric charge-increased electrostatic induction. P(VDF-TrFE) FE polymers were contacted with and separated from an ITO metal electrode and another P(VDF-TrFE) FE polymer under the variation of poling voltage, pressure, and temperature. The power outputs of the ITO-P(VDF-TrFE) and P(VDF-TrFE)-P(VDF-TrFE) FE-TENGs increased with poling voltage and pressure, but decreased with temperature; these behaviors are consistent with that of dipole charge rather than piezoelectric charge. Surface-sensitive spectroscopy and microscopy investigations suggested that electrons should be transferred, depending on the dipole direction, in the ITO-P(VDF-TrFE), whereas electrons and material should be transferred, depending on Young’s modulus, in the P(VDF-TrFE)-P(VDF-TrFE). The dipole- and piezoelectric charge-induced electric field plays a crucial role in the overlapped electron c

Who reads On the origin of enhanced power output in ferroelectric polymer-based triboelectric nanogenerators: Role of dipole charge versus piezoelectric charge?

Author

Dong Geun Jeong; Young Joon Ko; Jong Hun Kim; Dae Sol Kong; Ying Chieh Hu; Dong Woo Lee; Seong Hyun Im; Jeongwan Lee; Mi Suk Kim; Gwan-Hyoung Lee; Chang Won Ahn; Joung Real Ahn; Minbaek Lee; Jeong Young Park; Jong Hoon Jung

Publisher

Elsevier BV

Published

2022

Language

EN

Field

Engineering (Physical Sciences)