Enhanced Conductive Polymers for Reliable Organic Electronics
Here’s PatSnap Eureka !
Summary
Problems
Existing electrically conductive polymer compositions used in organic electronic devices, such as OLEDs, suffer from low pH levels due to water-soluble polymeric sulfonic acids, leading to decreased stress life and corrosion, and have conductivities too low for effective use as electrodes in thin film field effect transistors.
Innovation solutions
A conductive polymer composition comprising an electrically conductive copolymer and a fluorinated acid polymer, where the fluorinated acid polymer is present during the formation of the conductive copolymer, enhancing conductivity and stability, and allowing for improved compatibility with semiconducting polymers and solvents.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If water-soluble polymeric sulfonic acids are used to prepare conducting polymers, then the polymers can be synthesized in aqueous solution, but the resulting compositions have undesirably low pH levels leading to decreased stress life and corrosion
Why choose this principle:
The patent changes the chemical parameter of the polymeric acid from conventional sulfonic acids to fluorinated sulfonic acids. This parameter change maintains the ability to synthesize conducting polymers in aqueous solution while fundamentally altering the pH characteristics and chemical stability, thereby resolving the contradiction between ease of manufacture and device reliability
Principle concept:
If water-soluble polymeric sulfonic acids are used to prepare conducting polymers, then the polymers can be synthesized in aqueous solution, but the resulting compositions have undesirably low pH levels leading to decreased stress life and corrosion
Why choose this principle:
The patent creates a composite system comprising the conducting polymer (polyaniline or polythiophene) combined with fluorinated polymeric sulfonic acid. This composite material integrates the electrical conductivity of the conducting polymer with the chemical stability and high pH buffer capacity of fluorinated polymeric sulfonic acids, simultaneously achieving ease of aqueous synthesis and improved device reliability
Application Domain
Data Source
AI summary:
A conductive polymer composition comprising an electrically conductive copolymer and a fluorinated acid polymer, where the fluorinated acid polymer is present during the formation of the conductive copolymer, enhancing conductivity and stability, and allowing for improved compatibility with semiconducting polymers and solvents.
Abstract
The present disclosure relates to electrically conductive polymer compositions, comprising at least one electrically conductive copolymer; and at least one fluorinated acid polymer, their use in organic electronic devices, and methods for preparation.