3D piezoelectric polymer materials and devices
AssigneeThe Regents of the University of California
InventorsDonald J. Sirbuly, Shaochen Chen, Kanguk Kim, Wei Zhu
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Abstract
Methods, systems, and devices are disclosed for fabricating 3D piezoelectric materials. In one aspect, a method includes photopolymerizing a selected portion of a two dimensional plane in a sample of a photolabile polymer solution containing piezoelectric nanoparticles to form a layer of a piezoelectric material, the photopolymerizing including directing light from a light source based on a pattern design in the selected portion of the photolabile polymer solution; and moving one or both of the sample and the directed light to photopolymerize another selected portion of another two dimensional plane in the sample to form another layer of the piezoelectric material.
Claims20
A device comprising a piezoelectric material structure which includes:
- a three-dimensional polymeric microstructure that includes a plurality of piezoelectric nanoparticles embedded in a photocured polymer matrix;
- and
- acrylate containing linker molecules that covalently link the plurality of piezoelectric nanoparticles to the photocured polymer matrix,
- wherein the linker molecules are trimethoxysilylpropyl methacrylate (TMSPM) linker molecules, and
- wherein the piezoelectric material structure has a voltage response approximately between 400 mV and 600 mV under an applied load of 1.44N.
A device comprising a piezoelectric material structure which includes:
- a three-dimensional polymeric microstructure that includes a plurality of piezoelectric nanoparticles embedded in a photocured polymer matrix;
- and
- acrylate containing linker molecules that covalently link the plurality of piezoelectric nanoparticles to the photocured polymer matrix,
- wherein the acrylate containing the linker molecules include 3-trimethoxysilylpropyl acrylate (TMSPA),
- wherein the linker molecules include the TMSPA, and
- wherein the piezoelectric material structure under an applied load of 5N yields a voltage response of approximately 120 mV.
Dependencies are inferred from the claim text.