公开(公告)号：US20250019839A1

公开(公告)日：2025-01-16

申请号：US18747661

申请日：2024-06-19

Applicant: Wisconsin Alumni Research Foundation ,  Ohio State Innovation Foundation

Inventor： Xudong Wang ,  Yutao Dong ,  Dane Morgan ,  Jun Meng ,  Jinwoo Hwang ,  Mehrdad Abbasi Gharacheh

IPC: C25B11/049 ,  C25B11/059 ,  C25B11/087

Abstract: A post-ALD in-situ water treatment procedure is used to remove the ligand residues in amorphous TiO2 films coated on photoanode material to improve the film stoichiometry without introducing any additional crystallization. The processed amorphous TiO2 film showed drastically improved chemical stability, and thereby substantially elongated the lifetime of silicon-based photoanodes in alkaline electrolyte.

公开(公告)号：US12144260B2

公开(公告)日：2024-11-12

申请号：US17154711

申请日：2021-01-21

Applicant: Wisconsin Alumni Research Foundation

Inventor： Xudong Wang ,  Fan Yang ,  Jun Li

IPC: H10N30/00 ,  C08J5/18 ,  C08J7/06 ,  C09D1/00 ,  H10N30/02 ,  H10N30/87

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.

公开(公告)号：US20240341196A1

公开(公告)日：2024-10-10

申请号：US18130521

申请日：2023-04-04

Applicant: Wisconsin Alumni Research Foundation

Inventor： Xudong Wang ,  Jun Li

IPC: H10N30/85 ,  C08J7/04 ,  D01F4/00 ,  H02N2/18 ,  H10N30/092

CPC classification number: H10N30/852 ,  C08J7/0427 ,  D01F4/00 ,  H02N2/186 ,  H10N30/092 ,  C08J2383/04 ,  C08J2477/04 ,  D10B2401/16

Abstract: A stretchable piezoelectric thin film, and method of manufacture, an open mesh structure formed by a repeating branching and joining pattern. The thin film is manufactured by slowly lifting amino acid nanofibrils from a water-alcohol biphasic solvent. The film automatically assembles into a truss-like mesh network of amino acid nanofibrils that allows the open meshes to close with narrowed intersection angles between the amino acid nanofibrils. The alcohol molecules of the water-alcohol biphasic solvent preferably bind to the carboxyl groups on the amino acid surfaces thus limiting the growth along the side facets of the amino acid surfaces and promoting growth along the growth front producing a bifurcation in the amino acid biocrystal network.

公开(公告)号：US11988992B2

公开(公告)日：2024-05-21

申请号：US16600046

申请日：2019-10-11

Applicant: Wisconsin Alumni Research Foundation

Inventor： Xudong Wang ,  Jun Li

IPC: G04B1/02 ,  G04C1/08 ,  G04C10/00

CPC classification number: G04B1/02 ,  G04C1/082 ,  G04C10/00

Abstract: An energy harvesting system for use with the human body may use an eccentrically mounted weight winding a mainspring that drives a mechanical clock mechanism. The mechanical clock mechanism in turn may produce pulses of electricity, for example, through periodic flexing of a piezoelectric or triboelectric material during the regular motion of the mechanical timing mechanism. By remaining in a mechanical rather than electrical domain, improved simplicity and efficiency may be obtained in the generation of regularly spaced uniform pulses.

公开(公告)号：US11849642B2

公开(公告)日：2023-12-19

申请号：US16851400

申请日：2020-04-17

Applicant: Wisconsin Alumni Research Foundation

Inventor： Xudong Wang ,  Jun Li

IPC: G01L9/08 ,  B33Y80/00 ,  H10N30/084 ,  H10N30/057 ,  H10N30/092

CPC classification number: H10N30/057 ,  B33Y80/00 ,  G01L9/08 ,  H10N30/084 ,  H10N30/092

Abstract: A piezoelectric artificial artery can be 3D printed to provide the real-time precise sensing of blood pressure and vessel motion patterns enabling early detection of partial occlusions. An electric-field assisted 3D printing method allows for rapid printing and simultaneously poled complex ferroelectric structures with high fidelity and good piezoelectric performance. The print material consists of ferroelectric potassium sodium niobate (KNN) particles embedded within a ferroelectric polyvinylidene fluoride (PVDF) polymer matrix.

公开(公告)号：US20220254985A1

公开(公告)日：2022-08-11

申请号：US17170382

申请日：2021-02-08

Applicant: Wisconsin Alumni Research Foundation

Inventor： Xudong Wang ,  Jun Li

IPC: H01L41/18 ,  H01L41/083 ,  H01L41/257 ,  H01L41/277 ,  C08K3/11 ,  C08K3/04

Abstract: An in-situ poled ferroelectric prints with true 3D geometry is provided with an intercalated electrode design where soft polymer matrixes are selected for the ferroelectric layers, and rigid polymer matrixes are selected for the electrode layers, thus mimicking nacre architecture with a ceramic-like piezoelectric property and bone-like fracture toughness. Lithium-doped potassium sodium niobite (Li-KNN) microparticles may be used to produce ferroelectric properties and to create strong interfacial bonding with the interfacing electrode layers. Polylactic acid (PLA) in the electrode layers may be used to facilitate strong interfacial bonding with the Li-KNN microparticles.

公开(公告)号：US09637837B2

公开(公告)日：2017-05-02

申请号：US13968356

申请日：2013-08-15

Applicant: WISCONSIN ALUMNI RESEARCH FOUNDATION

Inventor： Xudong Wang ,  Fei Wang ,  Alexander V. Kvit

IPC: C30B7/14 ,  C30B29/16 ,  C30B29/60 ,  C30B7/04

CPC classification number: C30B7/14 ,  C30B7/04 ,  C30B29/16 ,  C30B29/60

Abstract: Methods of making electrically conductive, doped zinc oxide nanowires and nanowire films are provided. The methods comprises the steps of forming an aqueous solution comprising a dopant-containing precursor salt, a zinc-containing precursor salt and a pH buffering agent and heating the aqueous solution to a temperature below its boiling point in the presence of seed crystals, whereby doped zinc oxide nanowires are grown in situ from the seed crystals in the aqueous solution.

公开(公告)号：US09058993B2

公开(公告)日：2015-06-16

申请号：US13892446

申请日：2013-05-13

Applicant: Wisconsin Alumni Research Foundation

Inventor： Xudong Wang ,  Zhenqiang Ma ,  Fei Wang ,  Jung-Hun Seo

IPC: H01L29/12 ,  H01L21/02 ,  C30B7/14 ,  C30B29/16 ,  H01L29/786 ,  H01L33/28

CPC classification number: H01L21/02628 ,  C30B7/14 ,  C30B29/16 ,  H01L21/02554 ,  H01L21/0259 ,  H01L29/7869 ,  H01L33/28

Abstract: The present invention provides continuous, free-standing metal oxide films and methods for making said films. The methods are able to produce large-area, flexible, thin films having one or more continuous, single-crystalline metal oxide domains. The methods include the steps of forming a surfactant monolayer at the surface of an aqueous solution, wherein the headgroups of the surfactant molecules provide a metal oxide film growth template. When metal ions in the aqueous solution are exposed to the metal oxide film growth template in the presence of hydroxide ions under suitable conditions, a continuous, free-standing metal oxide film can be grown from the film growth template downward into the aqueous solution.

Abstract translation: 本发明提供连续的，独立的金属氧化物膜和制备所述膜的方法。 该方法能够生产具有一个或多个连续的单晶金属氧化物畴的大面积，柔性的薄膜。 所述方法包括在水溶液表面形成表面活性剂单层的步骤，其中表面活性剂分子的头基提供金属氧化物膜生长模板。 当水溶液中的金属离子在合适的条件下在氢氧根离子存在下暴露于金属氧化物膜生长模板时，可以将连续的自立式金属氧化物膜从膜生长模板向下生长到水溶液中。

公开(公告)号：US20190381324A1

公开(公告)日：2019-12-19

申请号：US16009553

申请日：2018-06-15

Applicant: Wisconsin Alumni Research Foundation

Inventor： Xudong Wang ,  Weibo Cai ,  Guang Yao ,  Lei Kang

IPC: A61N1/378 ,  A61N1/36

Abstract: The invention provides an implantable vagal nerve stimulator having a “passive” generating power source that harvests the stomach's movements to transform kinetic energy to electrical charge without the need for a battery. In this regard, the invention is self-powering and is automatically timed to stomach peristalsis. While sporadic stimulation to the vagal nerve would seem too infrequent to cause weight loss effects, electrical stimulation delivered at the optimal time (e.g., during food consumption) has been found to optimize the effects of vagal nerve stimulation, giving the user's brain a “full stomach” signal before the user over-consumes food.

公开(公告)号：US20190148779A1

公开(公告)日：2019-05-16

申请号：US15810903

申请日：2017-11-13

Applicant: Wisconsin Alumni Research Foundation

Inventor： Xudong Wang ,  Qiang Pang ,  Yingjin Wei

IPC: H01M10/36 ,  H01M4/36

CPC classification number: H01M10/36 ,  H01M4/362 ,  H01M4/38 ,  H01M4/48 ,  H01M4/624 ,  H01M2004/028 ,  H01M2300/0002

Abstract: An aqueous rechargeable zinc ion battery is provided, the battery comprising a cathode comprising a V3O7.H2O-graphene composite, the composite comprising a plurality of V3O7.H2O nanostructures in contact with graphene, an anode in electrical communication with the cathode, the anode comprising zinc, and an aqueous electrolyte between the cathode and the anode, the aqueous electrolyte comprising zinc ions and an ether of a type and at an amount selected to maximize a capacity retention value of the battery.