US 12,408,555 B2
Three-dimensional piezoelectric materials and uses thereof
Xiaoyu Zheng, Blacksburg, VA (US); Huachen Cui, Blacksburg, VA (US); and Ryan Hensleigh, Blacksburg, VA (US)
Assigned to VIRGINIA TECH INTELLECTUAL PROPERTIES, INC., Blacksburg, VA (US)
Appl. No. 17/057,715
Filed by VIRGINIA TECH INTELLECTUAL PROPERTIES, INC., Blacksburg, VA (US)
PCT Filed May 24, 2019, PCT No. PCT/US2019/034065
§ 371(c)(1), (2) Date Nov. 23, 2020,
PCT Pub. No. WO2019/227082, PCT Pub. Date Nov. 28, 2019.
Claims priority of provisional application 62/676,091, filed on May 24, 2018.
Prior Publication US 2021/0234089 A1, Jul. 29, 2021
Int. Cl. H01L 41/193 (2006.01); B33Y 30/00 (2015.01); B33Y 70/00 (2020.01); B33Y 80/00 (2015.01); H10N 30/093 (2023.01); H10N 30/098 (2023.01); H10N 30/85 (2023.01); B33Y 10/00 (2015.01); B33Y 40/00 (2020.01)
CPC H10N 30/852 (2023.02) [B33Y 30/00 (2014.12); B33Y 70/00 (2014.12); B33Y 80/00 (2014.12); H10N 30/093 (2023.02); H10N 30/098 (2023.02); B33Y 10/00 (2014.12); B33Y 40/00 (2014.12)] 19 Claims
OG exemplary drawing
 
1. A three-dimensional (3D) piezoelectric structure comprising:
a 3D periodic microlattice comprising a piezoelectric composite material, wherein the 3D periodic microlattice comprises a plurality of interconnected 3D node units capable of generating a piezoelectric response upon application of a stress to the 3D periodic microlattice, and wherein the plurality of interconnected 3D node units form a tailored piezoelectric tensor space,
wherein each 3D node unit of the plurality of interconnected 3D node units comprises struts that are arranged in 3D space and wherein at least one of the struts in a first 3D node unit is connected to a struct in a second 3D node unit so as to form an interconnected 3D node unit.