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OwnerJakob Nilsson, Christian Brox-Nilseninventors
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A method of exchanging or transforming end groups in and/or improving the ferroelectric properties of a PVDF-TrFE co-polymer is disclosed. A bulky or chemically dissimilar end group, such as an iodine, sulfate, aldehyde or carboxylic acid end group, may be transformed to a hydrogen, fluorine or chlorine atom. A method of making a PVDF-TrFE co-polymer is disclosed, including polymerizing a mixture of VDF and TrFE using an initiator, and transforming a bulky or chemically dissimilar end group to a hydrogen, fluorine or chlorine atom. A PVDF-TrFE co-polymer or other fluorinated alkene polymer is also disclosed. The co-polymer may be used as a ferroelectric, electromechanical, piezoelectric or dielectric material in an electronic device.
A method of forming an electronic device, comprising depositing a PVDF-TrFE co-polymer on a substrate as a ferroelectric, electromechanical, piezoelectric or dielectric material in the electronic device, wherein the PVDF-TrFE co-polymer has a formula X1—(C2H2F2)p—(C2HF3)q—X2, where X1 is R, H, F or Cl, R is a Cn-alkyl group that may contain from 1 to 2n+1 fluorine atoms, X2 is independently H, F or Cl, n is an integer of 1 to 6, p and q are integers of 2 or more, and 2500<p+q<20,000.
A method of forming an electronic device, comprising printing a PVDF-TrFE co-polymer on a substrate as a ferroelectric, electromechanical, piezoelectric or dielectric material in the electronic device, wherein the PVDF-TrFE co-polymer has an end group selected from H, F and Cl.
Dependencies are inferred from the claim text.