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公开(公告)号：US20200098972A1
公开(公告)日：2020-03-26
申请号：US16699084
申请日：2019-11-28
Applicant: Purdue Research Foundation
Inventor： Mukerrem Cakmak , Armen Yildirim , Rahim Rahimi
IPC: H01L41/18 , H01L41/047 , H04R17/00
Abstract: A transducer is disclosed which includes lead zirconate titanate (PZT) particles mixed with graphene nanoplatelets (GNPs) in a flexible substrate aligned in a first direction, forming a transducer subsystem, a first conductive protective electrode having a width and a length providing an electrical connectivity to an external circuit, a second conductive protective electrode having the width and the length providing an electrical connectivity to the external circuit, wherein the transducer subsystem is sandwiched between the first and second conductive protective electrodes.
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公开(公告)号：US20190352475A1
公开(公告)日：2019-11-21
申请号：US16167714
申请日：2018-10-23
Applicant: Purdue Research Foundation
Inventor： Mukerrem Cakmak , Armen Yildirim
Abstract: Processes and machines suitable for producing polymer films, and films produced thereby. Lead zirconate titanate (PZT) particles and electrically conductive nanoparticles are combined in a liquid polymer precursor matrix and aligned along nanocolumns in a thickness direction of the polymer precursor matrix by subjecting the PZT and nanoparticles to a uniform electric field, after which the polymer precursor matrix is solidified to form a piezoelectric polymer composite film. The PZT and nanoparticles are subjected to the uniform electric field for a duration sufficient to promote sensitivity and/or energy harvesting properties of the piezoelectric polymer composite film.
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公开(公告)号：US11552240B2
公开(公告)日：2023-01-10
申请号：US16571794
申请日：2019-09-16
Applicant: Purdue Research Foundation
Inventor： Mukerrem Cakmak , Armen Yildirim , Rahim Rahimi , Saeed Mohammadi , Ali Shakouri
IPC: H01L41/193 , G01L1/18 , G01L9/06 , H01L41/047 , H01L41/187 , H01L41/08 , H01L41/09 , H01L41/113
Abstract: A sensor is disclosed which includes a piezoelectric layer, a piezoresistive layer, one or more electrode layers coupled to the piezoelectric layer and to the piezoresistive layer, the piezoelectric layer configured to provide an electrical signal in response to application of a dynamic disturbance, and the piezoresistive layer configured to provide a change in resistivity in response to application of a static disturbance.
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公开(公告)号：US11203675B2
公开(公告)日：2021-12-21
申请号：US16167714
申请日：2018-10-23
Applicant: Purdue Research Foundation
Inventor： Mukerrem Cakmak , Armen Yildirim
Abstract: Processes and machines suitable for producing polymer films, and films produced thereby. Lead zirconate titanate (PZT) particles and electrically conductive nanoparticles are combined in a liquid polymer precursor matrix and aligned along nanocolumns in a thickness direction of the polymer precursor matrix by subjecting the PZT and nanoparticles to a uniform electric field, after which the polymer precursor matrix is solidified to form a piezoelectric polymer composite film. The PZT and nanoparticles are subjected to the uniform electric field for a duration sufficient to promote sensitivity and/or energy harvesting properties of the piezoelectric polymer composite film.
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Patent Agency Ranking
公开(公告)号：US20240174197A1
公开(公告)日：2024-05-30
申请号：US18523977
申请日：2023-11-30
Applicant: Purdue Research Foundation
Inventor： Mukerrem Cakmak , Armen Yildirim , Jesse Grant , Mahmoud Yousef Ghannam , Nagarpita Vidyanag
IPC: B60R21/34 , B60R19/48 , B60R21/0136 , H10N30/04 , H10N30/092 , H10N30/30 , H10N30/85 , H10N30/87
CPC classification number: B60R21/34 , B60R19/483 , B60R21/0136 , H10N30/04 , H10N30/092 , H10N30/302 , H10N30/852 , H10N30/878
Abstract: Flexible piezoelectric composite films, flexible piezoelectric impact sensors, pedestrian protection systems, and related methods. Such a flexible piezoelectric composite film includes a flexible matrix and a plurality of piezoelectric particles dispersed and embedded within the flexible matrix. The piezoelectric particles are arranged in columns aligned in a Z-direction along a thickness of the flexible matrix.
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公开(公告)号：US11957058B2
公开(公告)日：2024-04-09
申请号：US18111545
申请日：2023-02-18
Applicant: Purdue Research Foundation
Inventor： Mukerrem Cakmak , Armen Yildirim , Rahim Rahimi
CPC classification number: H10N30/852 , H04R17/005 , H10N30/875 , H10N30/878
Abstract: A method of transducing electrical energy to sound is disclosed which includes providing a transducer, the transducer includes lead zirconate titanate (PZT) particles mixed with graphene nanoplatelets (GNPs) in a flexible substrate aligned in a first direction, forming a transducer subsystem, a first conductive protective electrode having a width and a length configured to provide a first electrical connectivity to an external circuit, and a second conductive protective electrode having the width and the length and configured to provide a second electrical connectivity to the external circuit, wherein the transducer subsystem is sandwiched between the first and second conductive protective electrodes, and providing an external circuit configured to provide an electrical signal to the first and second conductive protective electrodes to thereby transduce the electrical signal to sound.
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公开(公告)号：US20230240146A1
公开(公告)日：2023-07-27
申请号：US18111545
申请日：2023-02-18
Applicant: Purdue Research Foundation
Inventor： Mukerrem Cakmak , Armen Yildirim , Rahim Rahimi
CPC classification number: H10N30/852 , H04R17/005 , H10N30/875 , H10N30/878
Abstract: A method of transducing electrical energy to sound is disclosed which includes providing a transducer, the transducer includes lead zirconate titanate (PZT) particles mixed with graphene nanoplatelets (GNPs) in a flexible substrate aligned in a first direction, forming a transducer subsystem, a first conductive protective electrode having a width and a length configured to provide a first electrical connectivity to an external circuit, and a second conductive protective electrode having the width and the length and configured to provide a second electrical connectivity to the external circuit, wherein the transducer subsystem is sandwiched between the first and second conductive protective electrodes, and providing an external circuit configured to provide an electrical signal to the first and second conductive protective electrodes to thereby transduce the electrical signal to sound.
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公开(公告)号：US11588097B2
公开(公告)日：2023-02-21
申请号：US16699084
申请日：2019-11-28
Applicant: Purdue Research Foundation
Inventor： Mukerrem Cakmak , Armen Yildirim , Rahim Rahimi
IPC: C08K3/04 , H01L41/08 , H01L41/18 , H04R17/00 , H01L41/047
Abstract: A transducer is disclosed which includes lead zirconate titanate (PZT) particles mixed with graphene nanoplatelets (GNPs) in a flexible substrate aligned in a first direction, forming a transducer subsystem, a first conductive protective electrode having a width and a length providing an electrical connectivity to an external circuit, a second conductive protective electrode having the width and the length providing an electrical connectivity to the external circuit, wherein the transducer subsystem is sandwiched between the first and second conductive protective electrodes.
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公开(公告)号：US20200013946A1
公开(公告)日：2020-01-09
申请号：US16571794
申请日：2019-09-16
Applicant: Purdue Research Foundation
Inventor： Mukerrem Cakmak , Armen Yildirim , Rahim Rahimi , Saeed Mohammadi , Ali Shakouri
IPC: H01L41/193 , G01L1/18 , G01L9/06 , H01L41/047 , H01L41/113 , H01L41/08 , H01L41/09 , H01L41/187
Abstract: A sensor is disclosed which includes a piezoelectric layer, a piezoresistive layer, one or more electrode layers coupled to the piezoelectric layer and to the piezoresistive layer, the piezoelectric layer configured to provide an electrical signal in response to application of a dynamic disturbance, and the piezoresistive layer configured to provide a change in resistivity in response to application of a static disturbance.
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