The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 12, 2024
Filed:
Jan. 21, 2021
Applicant:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Inventors:
Assignee:
Wisconsin Alumni Research Foundation, Madison, WI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H10N 30/00 (2023.01); C08J 5/18 (2006.01); C08J 7/06 (2006.01); C09D 1/00 (2006.01); H10N 30/02 (2023.01); H10N 30/87 (2023.01);
U.S. Cl.
CPC ...
H10N 30/704 (2024.05); C08J 5/18 (2013.01); C08J 7/06 (2013.01); C09D 1/00 (2013.01); H10N 30/02 (2023.02); H10N 30/872 (2023.02); C08J 2331/04 (2013.01); C08J 2371/00 (2013.01);
Abstract
A flexible piezoelectric thin film, and method of manufacture, has a polyvinyl alcohol (PVA)-glycine-PVA sandwich heterostructure. The thin film is manufactured by evaporating the solvent from a glycine-PVA mixture solution. The film automatically assembles into the PVA-glycine-PVA sandwich heterostructure as it is salted out. Strong hydrogen bonding between the oxygen atoms in glycine and hydroxyl groups on PVA chains are responsible for the nucleation and growth of the piezoelectric γ-glycine and alignment of the domain orientation.