Introducing Photo-Cross-Linkable Functionalities on P(VDF-co-TrFE) Ferroelectric Copolymer

Area of Science:

• Materials Science
• Polymer Chemistry
• Organic Electronics

Background:

• Ferroelectric polymers are key for organic electronics, with growing interest due to applications like fingerprint sensors.
• Current optimization relies on physical methods, but chemical modification offers new potential.
• Post-polymerization modification of ferroelectric polymers is an emerging field.

Purpose of the Study:

• To develop a facile, solution-based method for post-polymerization chemical modification of ferroelectric polymers.
• To demonstrate the grafting of functional groups onto Poly(vinylidene fluoride-co-trifluoroethylene) (P(VDF-co-TrFE)).
• To explore the integration of modified polymers into microfabrication processes.

Main Methods:

• Developed a solution-based chemical grafting technique for P(VDF-co-TrFE).
• Grafted photosensitive groups onto the polymer backbone.
• Utilized modified polymers as negative photoresists in photolithography.

Main Results:

• Successfully grafted functional groups onto commercially available P(VDF-co-TrFE).
• Achieved photo-cross-linking capability in the modified polymers.
• Demonstrated the utility of modified polymers as negative photoresists.

Conclusions:

• The developed method offers a versatile approach for modifying ferroelectric polymers.
• This technique facilitates the integration of ferroelectric fluorinated electroactive polymers into electronic microfabrication.
• The study highlights the potential for creating advanced organic electronic devices through chemical modification.