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    Ultrafast chemical imaging by widefield photothermal sensing of infrared absorption
    1.
    发明授权
    Ultrafast chemical imaging by widefield photothermal sensing of infrared absorption 有权

    公开(公告)号：US11867620B2

    公开(公告)日：2024-01-09

    申请号：US17600438

    申请日：2019-12-10

    Applicant: Purdue Research Foundation

    Inventor： Ji-Xin Cheng ,  Yeran Bai ,  Delong Zhang ,  Ali Shakouri ,  D. Kerry Maize

    IPC: G01N21/3577

    CPC classification number: G01N21/3577 ,  G01N2201/06113

    Abstract: Systems and methods for detecting photothermal effect in a sample are described herein. In these systems and methods, a pump source is configured to generate a pump pulse train, a probe source is configured to generate a probe pulse train and is synchronized with the pump pulse train, and a camera collects the resulting data. The camera is configured to collect a first signal corresponding to a hot frame, wherein the hot frame includes visible probe beam as modified by a pump beam and a second signal corresponding to a cold frame, wherein the cold frame includes visible probe beam that has not been modified by a pump beam. A processor can subtract the second signal from the first signal to detect the photothermal effect.

    Woven Thermoelectric Ribbon
    2.
    发明申请
    Woven Thermoelectric Ribbon 有权

    公开(公告)号：US20220246819A1

    公开(公告)日：2022-08-04

    申请号：US17592885

    申请日：2022-02-04

    Applicant: Purdue Research Foundation ,  KARLSRUHE INSTITUTE OF TECHNOLOGY

    Inventor： Kazuaki Yazawa ,  Ali Shakouri ,  Ulrich Lemmer ,  Andres Georg Roesch

    IPC: H01L35/32 ,  D03D1/00 ,  D03D3/00 ,  D03D15/533

    Abstract: A woven structure includes thermoelectric ribbons interwoven with thread. Each thermoelectric ribbon includes a folded matrix of thermoelectric elements, the matrix having an insulating substrate that supports plural rows of thermoelectric elements, a plurality of conductive elements, and two terminals. The conductive elements form a series connection of the thermoelectric elements between the two terminals. A set of first conductive elements have a first temperature and a set of second conductive contacts have a second temperature lower than the first temperature when a first current flows in a first direction between the first matrix terminal and the second matrix terminal. The folded matrix is configured to form spaced-apart alternating stacks of the first conductive contacts and second conductive contacts. Each length of the yard or thread is interwoven such that it passes alternately under stacks of first conductive contacts and over stacks of second conductive contacts.

    MANUFACTURING AND DEPLOYMENT OF PRINTED DEVICES USING MACHINE LEARNING
    3.
    发明申请
    MANUFACTURING AND DEPLOYMENT OF PRINTED DEVICES USING MACHINE LEARNING 有权

    公开(公告)号：US20220219473A1

    公开(公告)日：2022-07-14

    申请号：US17573385

    申请日：2022-01-11

    Applicant: Purdue Research Foundation

    Inventor： Jan P. Allebach ,  Muhammad Ashraful Alam ,  Rahim Rahimi ,  Babak Ziaie ,  Ali Shakouri ,  Mukerrem Cakmak ,  Nicholas Glassmaker ,  Xihui Wang ,  Qinyu Yang

    IPC: B41M3/00

    Abstract: Methods for fabricating printed devices and monitoring one or more performance characteristics of the printed devices during their fabrication in a high-speed process. Such a method includes developing a physics-based model of at least a first component of the printed devices, fabricating the printed devices with the high-speed process using fabrication steps that comprise depositing the first components, acquiring a physical characteristic of a plurality of the first components of a plurality of the printed devices following the depositing of the first components, predicting a performance characteristic of the printed devices based on the physics-based model of the first component and the physical characteristic acquired of the plurality of the first components; and then modifying at least one of the fabrication steps performed during the fabricating of a subsequently-fabricated group of the printed devices to adjust the performance characteristic of the subsequently-fabricated group of the printed devices.

    ELECTRIC GENERATOR AND METHOD OF MAKING THE SAME
    4.
    发明申请
    ELECTRIC GENERATOR AND METHOD OF MAKING THE SAME 审中-公开

    公开(公告)号：US20190181320A1

    公开(公告)日：2019-06-13

    申请号：US16219882

    申请日：2018-12-13

    Applicant: PURDUE RESEARCH FOUNDATION

    Inventor： Kazuaki Yazawa ,  Ali Shakouri

    IPC: H01L35/24 ,  H01L35/34

    Abstract: An electric generator including a thermoelectric material over a first metallization surface. The thermoelectric material includes at least one of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS), tellurium-PEDOT:PSS (Te-PEDOT:PSS), Polydimethylsiloxane (PDMS), carbon nanostructured particles embedded in a base polymer, Bismuth telluride (Bi2Te3), or a polyimide film. Additionally, the electric generator includes a second metallization surface over the thermoelectric material.

    Woven Thermoelectric Ribbon
    5.
    发明公开
    Woven Thermoelectric Ribbon 审中-公开

    公开(公告)号：US20240099138A1

    公开(公告)日：2024-03-21

    申请号：US18520174

    申请日：2023-11-27

    Applicant: Purdue Research Foundation ,  KARLSRUHE INSTITUTE OF TECHNOLOGY

    Inventor： Kazuaki Yazawa ,  Ali Shakouri ,  Ulrich Lemmer ,  Andres Georg Roesch

    IPC: H10N10/17 ,  D03D1/00 ,  D03D3/00 ,  D03D15/533

    CPC classification number: H10N10/17 ,  D03D1/0088 ,  D03D3/005 ,  D03D15/533

    Abstract: A woven structure includes thermoelectric ribbons interwoven with thread. Each thermoelectric ribbon includes a matrix of thermoelectric elements, the matrix having an insulating substrate that supports plural rows of thermoelectric elements, a plurality of conductive elements, and two terminals. The conductive elements form a series connection of the thermoelectric elements between the two terminals. A set of first conductive elements have a first temperature and a set of second conductive contacts have a second temperature lower than the first temperature when a first current flows in a first direction between the first matrix terminal and the second matrix terminal. The matrix is configured to form spaced-apart alternating stacks of the first conductive contacts and second conductive contacts. Each length of the yard or thread is interwoven such that it passes alternately under stacks of first conductive contacts and over stacks of second conductive contacts.

    Woven thermoelectric ribbon
    6.
    发明授权
    Woven thermoelectric ribbon 有权

    公开(公告)号：US11832518B2

    公开(公告)日：2023-11-28

    申请号：US17592885

    申请日：2022-02-04

    Applicant: Purdue Research Foundation ,  KARLSRUHE INSTITUTE OF TECHNOLOGY

    Inventor： Kazuaki Yazawa ,  Ali Shakouri ,  Ulrich Lemmer ,  Andres Georg Roesch

    IPC: H10N10/17 ,  D03D15/533 ,  D03D1/00 ,  D03D3/00

    CPC classification number: H10N10/17 ,  D03D1/0088 ,  D03D3/005 ,  D03D15/533

    Abstract: A woven structure includes thermoelectric ribbons interwoven with thread. Each thermoelectric ribbon includes a folded matrix of thermoelectric elements, the matrix having an insulating substrate that supports plural rows of thermoelectric elements, a plurality of conductive elements, and two terminals. The conductive elements form a series connection of the thermoelectric elements between the two terminals. A set of first conductive elements have a first temperature and a set of second conductive contacts have a second temperature lower than the first temperature when a first current flows in a first direction between the first matrix terminal and the second matrix terminal. The folded matrix is configured to form spaced-apart alternating stacks of the first conductive contacts and second conductive contacts. Each length of the yard or thread is interwoven such that it passes alternately under stacks of first conductive contacts and over stacks of second conductive contacts.

    FLEXIBLE THERMOELECTRIC GENERATOR
    9.
    发明申请
    FLEXIBLE THERMOELECTRIC GENERATOR 审中-公开

    公开(公告)号：US20180240956A1

    公开(公告)日：2018-08-23

    申请号：US15765111

    申请日：2016-09-30

    Applicant: Purdue Research Foundation

    Inventor： Kazuaki Yazawa ,  Ali Shakouri

    IPC: H01L35/32 ,  H01L35/30 ,  H01L35/16

    CPC classification number: H01L35/32 ,  H01L35/16 ,  H01L35/30

    Abstract: A low heat flux flexible thermoelectric generator woven with semiconducting strings. The thermoelectric strings have a repeated structure of (metal)-(p-type semiconductor)-(metal)-(n-type semiconductor) materials and are formulated with a continuous structure forming a module. In this woven structure, the thermoelectric strings are the warp threads and the insulator strings are the weft yarns. The p-type and n-type stripes are aligned to the same dimensions. A metal terminal at the end of the strings provides the electrical connections in a series with a serpentine pattern. Two electrically insulating films laminated on the top and bottom of this woven structure conduct the surface heat to the metal junctions on both the hot and cold sides. The small fill factor (low fractional area coverage of the thermoelectric leg) creates a high internal thermal resistance that is better matched to low heat flux sources such as human body for harvesting the maximum power output.

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