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公开(公告)号：US20250003109A1
公开(公告)日：2025-01-02
申请号：US18708364
申请日：2022-11-29
Applicant: Massachusetts Institute of Technology
Inventor： Farnaz Niroui , Patricia Jastrzebska-Perfect
Abstract: A system and method for patterned growth of halide perovskite nanocrystals is disclosed. This method allows control over the size, number and position of the nanocrystals, while ensuring compatibility with device integration processes. The method uses a topographical template comprising a plurality of wells with asymmetric surface wetting to confine the nanocrystal growth to within the wells. Further, the shape and surface wetting properties of the wells are used to induce local directional forces to guide nanocrystal positioning during the growth process. With this technique, scalable arrays of nanocrystals with tunable dimensions and precise positional accuracy are possible. As an example, this method allows arrays of active nanoscale perovskite light emitting diodes (LEDs).
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公开(公告)号：US10566492B2
公开(公告)日：2020-02-18
申请号：US15781652
申请日：2016-12-07
Applicant: Massachusetts Institute of Technology
Inventor： Farnaz Niroui , Thomas Stephen Mahony , Vladimir Bulovic , Jeffrey H. Lang
Abstract: Light-emitting devices are disclosed. In some embodiments, the devices may emit light when a tunneling current is generated within the device.
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公开(公告)号：US20180330897A1
公开(公告)日：2018-11-15
申请号：US15774642
申请日：2016-11-09
Applicant: Massachusetts Institute of Technology
Inventor： Jeffrey H. Lang , Timothy M. Swager , Vladimir Bulovic , Farnaz Niroui , Ellen Sletten
Abstract: Devices comprising at least two electrodes with a layer disposed therebetween are disclosed. In some embodiments, the layer disposed therebetween may be an insulator. In some embodiments, the layer may be capable of being deformed. Deforming the layer may cause a change in one or more materials properties of the device, such as the electrical properties and/or the optical properties of the device.
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公开(公告)号：US11152227B2
公开(公告)日：2021-10-19
申请号：US16107566
申请日：2018-08-21
Applicant: Massachusetts Institute of Technology
Inventor： Richard Swartwout , Farnaz Niroui , Vladimir Bulovic , Jeffrey H. Lang , Joel Jean
Abstract: A method includes encapsulating structures disposed on or over a surface of a substrate in an encapsulant. The method also includes separating the encapsulant from the substrate. An apparatus includes a composite film having structures embedded in an encapsulant. The composite film has a surface with a surface roughness of less than one nm. An apparatus includes an encapsulant film having a surface with indentations formed therein. The surface has a surface roughness apart from the indentations of less than one nm.
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公开(公告)号：US09991076B2
公开(公告)日：2018-06-05
申请号：US14763681
申请日：2014-01-28
Applicant: Massachusetts Institute of Technology
Inventor： Vladimir Bulovic , Jeffrey H. Lang , Hae-Seung Lee , Timothy M. Swager , Trisha L. Andrew , Matthew Eric D'Asaro , Parag Deotare , Apoorva Murarka , Farnaz Niroui , Ellen Sletten , Annie I-Jen Wang
CPC classification number: H01H59/0009 , H01H49/00 , H01L45/00 , Y10T156/10
Abstract: Electromechanical devices described herein may employ tunneling phenomena to function as low-voltage switches. Opposing electrodes may be separated by an elastically deformable layer which, in some cases, may be made up of a non-electrically conductive material. In some embodiments, the elastically deformable layer is substantially free of electrically conductive material. When a sufficient actuation voltage and/or force is applied, the electrodes are brought toward one another and, accordingly, the elastically deformable layer is compressed. Though, the elastically deformable layer prevents the electrodes from making direct contact with one another. Rather, when the electrodes are close enough to one another, a tunneling current arises therebetween. The elastically deformable layer may exhibit spring-like behavior such that, upon release of the actuation voltage and/or force, the separation distance between electrodes is restored. Thus, the electromechanical device may be actuated between open and closed switch positions.
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Patent Agency Ranking
公开(公告)号：US10475601B2
公开(公告)日：2019-11-12
申请号：US15774642
申请日：2016-11-09
Applicant: Massachusetts Institute of Technology
Inventor： Jeffrey H. Lang , Timothy M. Swager , Vladimir Bulovic , Farnaz Niroui , Ellen Sletten
Abstract: Devices comprising at least two electrodes with a layer disposed therebetween are disclosed. In some embodiments, the layer disposed therebetween may be an insulator. In some embodiments, the layer may be capable of being deformed. Deforming the layer may cause a change in one or more materials properties of the device, such as the electrical properties and/or the optical properties of the device.
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公开(公告)号：US20150357142A1
公开(公告)日：2015-12-10
申请号：US14763681
申请日：2014-01-28
Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY
Inventor： Vladimir Bulovic , Jeffrey H. Lang , Hae-Seung Lee , Timothy M. Swager , Trisha L. Andrew , Matthew Eric D'Asaro , Parag Deotare , Apoorva Murarka , Farnaz Niroui , Ellen Sletten , Annie I-Jen Wang
CPC classification number: H01H59/0009 , H01H49/00 , H01L45/00 , Y10T156/10
Abstract: Electromechanical devices described herein may employ tunneling phenomena to function as low-voltage switches. Opposing electrodes may be separated by an elastically deformable layer which, in some cases, may be made up of a non-electrically conductive material. In some embodiments, the elastically deformable layer is substantially free of electrically conductive material. When a sufficient actuation voltage and/or force is applied, the electrodes are brought toward one another and, accordingly, the elastically deformable layer is compressed. Though, the elastically deformable layer prevents the electrodes from making direct contact with one another. Rather, when the electrodes are close enough to one another, a tunneling current arises therebetween. The elastically deformable layer may exhibit spring-like behavior such that, upon release of the actuation voltage and/or force, the separation distance between electrodes is restored. Thus, the electromechanical device may be actuated between open and closed switch positions.
Abstract translation: 本文所述的机电装置可以采用隧道现象作为低压开关。 相反的电极可以由可弹性变形的层隔开，在一些情况下，这些可由非导电材料组成。 在一些实施例中，弹性变形层基本上不含导电材料。 当施加足够的致动电压和/或力时，电极彼此相向，并且因此可弹性变形层被压缩。 尽管可弹性变形层防止电极彼此直接接触。 相反，当电极彼此足够接近时，在其间产生隧穿电流。 可弹性变形层可以呈现类似弹簧的行为，使得在释放致动电压和/或力时，恢复电极之间的间隔距离。 因此，可以在打开和关闭的开关位置之间致动机电装置。
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公开(公告)号：US20190080932A1
公开(公告)日：2019-03-14
申请号：US16107566
申请日：2018-08-21
Applicant: Massachusetts Institute of Technology
Inventor： Richard Swartwout , Farnaz Niroui , Vladimir Bulovic , Jeffrey H. Lang , Joel Jean
Abstract: A method includes encapsulating structures disposed on or over a surface of a substrate in an encapsulant. The method also includes separating the encapsulant from the substrate. An apparatus includes a composite film having structures embedded in an encapsulant. The composite film has a surface with a surface roughness of less than one nm. An apparatus includes an encapsulant film having a surface with indentations formed therein. The surface has a surface roughness apart from the indentations of less than one nm.
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公开(公告)号：US20180323335A1
公开(公告)日：2018-11-08
申请号：US15781652
申请日：2016-12-07
Applicant: Massachusetts Institute of Technology
Inventor： Farnaz Niroui , Thomas Stephen Mahony , Vladimir Bulovic , Jeffrey H. Lang
CPC classification number: H01L33/0037 , H01L33/04 , H01L33/06 , H01L33/36
Abstract: Light-emitting devices are disclosed. In some embodiments, the devices may emit light when a tunneling current is generated within the device.
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公开(公告)号：US09419147B2
公开(公告)日：2016-08-16
申请号：US14593066
申请日：2015-01-09
Applicant: Massachusetts Institute of Technology
Inventor： Vladimir Bulovic , Jeffrey H. Lang , Sarah Paydavosi , Annie I-Jen Wang , Trisha L. Andrew , Apoorva Murarka , Farnaz Niroui , Frank Yaul , Jeffrey C. Grossman
IPC: H01L29/84 , H01L29/417 , H01L27/06 , H01L45/00
CPC classification number: H01L29/84 , H01L27/0629 , H01L29/41725 , H01L45/00 , Y10S977/742
Abstract: A method and apparatus for making analog and digital electronics which includes a composite including a squishable material doped with conductive particles. A microelectromechanical systems (MEMS) device has a channel made from the composite, where the channel forms a primary conduction path for the device. Upon applied voltage, capacitive actuators squeeze the composite, causing it to become conductive. The squishable device includes a control electrode, and a composite electrically and mechanically connected to two terminal electrodes. By applying a voltage to the control electrode relative to a first terminal electrode, an electric field is developed between the control electrode and the first terminal electrode. This electric field results in an attractive force between the control electrode and the first terminal electrode, which compresses the composite and enables electric control of the electron conduction from the first terminal electrode through the channel to the second terminal electrode.
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