Enhanced Piezoelectric Effect in P(VDF-TrFE) through Synergistic Templating by PEDOT:PSS and Paper

Area of Science:

• Materials Science
• Polymer Science
• Nanotechnology

Background:

• Growing electronic waste necessitates sustainable materials like biodegradable substrates and battery-free devices.
• Piezoelectric materials convert mechanical stress into electrical energy, crucial for energy harvesting and sensors.

Purpose of the Study:

• To create a piezoelectric paper composite with enhanced performance without electric poling.
• To investigate the synergistic templating effect of a conducting polymer and paper on P-(VDF-TrFE) crystallite orientation.

Main Methods:

• Fabrication of a piezoelectric paper composite by integrating P-(VDF-TrFE) with PEDOT:PSS and wood fiber paper.
• Characterization of the piezoelectric properties and crystallite structure of the composite.
• Computational modeling to understand the mechanism of enhanced piezoelectric performance.

Main Results:

• The composite exhibited an enhanced out-of-plane piezoelectric coefficient in P-(VDF-TrFE) without electric poling.
• A synergistic templating effect from PEDOT:PSS and paper induced a high population of edge-on β phase P-(VDF-TrFE) crystallites.
• Supramolecular interactions and linear PEDOT conformation at the interface promoted β phase PVDF growth.

Conclusions:

• The developed piezoelectric paper composite offers a promising route for sustainable, battery-free electronic devices.
• The synergistic templating mechanism provides a method for tuning piezoelectric properties in paper-based materials.
• This work advances the development of eco-friendly electronic components by leveraging material design and supramolecular interactions.