Tunable Surface and Matrix Chemistries in Optically Printed (0-3) Piezoelectric Nanocomposites

Area of Science:

• Materials Science
• Polymer Science
• Nanotechnology

Background:

• Piezoelectric polymer nanocomposites offer unique electromechanical properties.
• The (0-3) connectivity offers a promising route for material design.
• Understanding structure-property relationships is crucial for performance enhancement.

Purpose of the Study:

• To investigate the influence of surface modification, matrix parameters, and fabrication conditions on optically printed (0-3) piezoelectric polymer nanocomposites.
• To identify key parameters for maximizing the piezoelectric coefficient (d33).
• To establish a foundation for the development of high-performance piezoelectric materials.

Main Methods:

• Optically printing of (0-3) piezoelectric polymer nanocomposites.
• Systematic variation of nanoparticle edge-length and surface modification.
• Optimization of matrix composition and fabrication parameters.
• Characterization of piezoelectric properties, specifically the piezoelectric coefficient (d33).

Main Results:

• A 75% reduction in nanoparticle edge-length resulted in over a 100% increase in the piezoelectric coefficient (d33).
• Optimized 10% barium titanate nanocomposites achieved d33 values of ~80 pC/N, a significant improvement over unoptimized samples (<5 pC/N).
• Demonstrated the critical role of nanoparticle size and fabrication conditions in determining composite performance.

Conclusions:

• Surface modification and precise control over fabrication conditions are vital for enhancing piezoelectric polymer nanocomposite performance.
• The study provides a clear pathway to achieving high piezoelectric coefficients in (0-3) composites.
• These optimized materials hold potential for diverse applications requiring efficient electromechanical transduction.