US 12,010,920 B2
3D-printed ferroelectric metamaterial with giant piezoelectricity and biomimetic mechanical toughness
Xudong Wang, Middleton, WI (US); and Jun Li, Madison, WI (US)
Assigned to Wisconsin Alumni Research Foundation, Madison, WI (US)
Filed by Wisconsin Alumni Research Foundation, Madison, WI (US)
Filed on Feb. 8, 2021, as Appl. No. 17/170,382.
Prior Publication US 2022/0254985 A1, Aug. 11, 2022
Int. Cl. H01L 41/08 (2006.01); C08K 3/04 (2006.01); C08K 3/11 (2018.01); H01L 41/18 (2006.01); H10N 30/045 (2023.01); H10N 30/057 (2023.01); H10N 30/50 (2023.01); H10N 30/85 (2023.01)
CPC H10N 30/852 (2023.02) [C08K 3/04 (2013.01); C08K 3/11 (2018.01); H10N 30/045 (2023.02); H10N 30/057 (2023.02); H10N 30/50 (2023.02)] 14 Claims
OG exemplary drawing
 
1. A piezoelectric material comprising:
a structure having alternating layers of ferroelectric material and conductive material alternated along a build axis;
a first electrode connected to at least a first layer of conductive material; and
a second electrode connected to at least a second layer of conductive material different from the first layer of conductive material;
wherein the ferroelectric material is electrically poled in a direction along the build axis; and
wherein the ferroelectric material and conductive material are hydrogen bonded to provide an interface that is at least as strong as the ferroelectric and conductive materials individually.