公开(公告)号：US10680194B2

公开(公告)日：2020-06-09

申请号：US14993399

申请日：2016-01-12

Applicant: Massachusetts Institute of Technology

Inventor： Patrick R. Brown ,  Geoffrey J. Supran ,  Jeffrey C. Grossman ,  Moungi G. Bawendi ,  Vladimir Bulovic

IPC: F21V14/00 ,  H01L51/50 ,  H01L51/52

Abstract: A light emitting device can include a light source, a first electrode, a second electrode, a first barrier layer, a second barrier layer, and an emitter layer between the first barrier layer and the second barrier layer. A method of controllably generating light can comprise two states: An ON state, wherein an emitter layer of a device (which includes a photoluminescent pixel) is illuminated with a light source in the absence of an electric field, and the emitter layer generates light through photoluminescence; and an OFF state, wherein an emitter layer of a device (which includes a photoluminescent pixel) is illuminated with a light source in the presence of a static or time-varying electric field, and the electric field or induced current results in quenching of the emitter photoluminescence.

公开(公告)号：US10109760B2

公开(公告)日：2018-10-23

申请号：US15095001

申请日：2016-04-08

Applicant: MASSACHUSETTS INSTITUTE OF TECHNOLOGY

Inventor： Gyuweon Hwang ,  Donghun Kim ,  Jose M. Cordero ,  Mark W. B. Wilson ,  Chia-Hao M. Chuang ,  Jeffrey C. Grossman ,  Moungi G. Bawendi

IPC: H01L31/18 ,  H01L31/036 ,  H01L31/032 ,  H01L31/0445 ,  H01L51/00 ,  H01L31/0352 ,  H01L51/42

Abstract: The size-dependent band-gap tunability and solution processability of nanocrystals (NCs) make them attractive candidates for optoelectronic applications. One factor that presently limits the device performance of NC thin films is sub-bandgap states, also referred to as trap states. Trap states can be controlled by surface treatment of the nanocrystals.

公开(公告)号：US20160201881A1

公开(公告)日：2016-07-14

申请号：US14993399

申请日：2016-01-12

Applicant: Massachusetts Institute of Technology

Inventor： Patrick R. Brown ,  Geoffrey J. Supran ,  Jeffrey C. Grossman ,  Moungi G. Bawendi ,  Vladimir Bulovic

IPC: F21V14/00 ,  F21V9/16

Abstract: A light emitting device can include a light source, a first electrode, a second electrode, a first barrier layer, a second barrier layer, and an emitter layer between the first barrier layer and the second barrier layer. A method of controllably generating light can comprise two states: An ON state, wherein an emitter layer of a device (which includes a photoluminescent pixel) is illuminated with a light source in the absence of an electric field, and the emitter layer generates light through photoluminescence; and an OFF state, wherein an emitter layer of a device (which includes a photoluminescent pixel) is illuminated with a light source in the presence of a static or time-varying electric field, and the electric field or induced current results in quenching of the emitter photoluminescence.

Abstract translation: 发光器件可以包括第一阻挡层和第二阻挡层之间的光源，第一电极，第二电极，第一阻挡层，第二阻挡层和发射极层。 可控制地产生光的方法可以包括两种状态：导通状态，其中在不存在电场的情况下，用光源照射器件的发射极层（其包括光致发光像素），并且发射极层通过 光致发光; 和OFF状态，其中在存在静态或时变电场的情况下，用光源照射装置（包括光致发光像素）的发射极层，并且电场或感应电流导致 发射体光致发光。

公开(公告)号：US12284756B2

公开(公告)日：2025-04-22

申请号：US17775571

申请日：2020-11-18

Applicant: Massachusetts Institute of Technology

Inventor： Jeffrey C. Grossman ,  Woo Hyun Chae ,  Thomas Andre Francois Sannicolo

IPC: H05K1/09 ,  H10K30/82 ,  G06F3/041

Abstract: Composite electrodes and their methods of manufacture are disclosed. In one embodiment, an electrode may include a first layer including first particles, a second layer including conductive nanowires, and a third layer comprising second particles. The second layer may be disposed between and in electrical contact with the first layer and the third layer. The composite electrode may be substantially transparent in some embodiments.

公开(公告)号：US11004943B2

公开(公告)日：2021-05-11

申请号：US16376801

申请日：2019-04-05

Applicant: Massachusetts Institute of Technology

Inventor： Brendan Derek Smith ,  Jeffrey C. Grossman

IPC: H01L29/32 ,  H01L29/24 ,  H01L29/20 ,  H01L29/16 ,  H01L21/3065 ,  H01L21/308 ,  H01L21/324

Abstract: Methods for forming porous or nanoporous semiconductor materials are described. The methods allow for the formation of arrays pores or nanopores in semiconductor materials with advantageous pore size, spacing, pore volume, material thickness, and other aspects. Porous and nanoporous materials also are provided.

公开(公告)号：US20190312112A1

公开(公告)日：2019-10-10

申请号：US16376801

申请日：2019-04-05

Applicant: Massachusetts Institute of Technology

Inventor： Brendan Derek Smith ,  Jeffrey C. Grossman

IPC: H01L29/32 ,  H01L29/24 ,  H01L29/20 ,  H01L29/16 ,  H01L21/308 ,  H01L21/324 ,  H01L21/3065

Abstract: Methods for forming porous or nanoporous semiconductor materials are described. The methods allow for the formation of arrays pores or nanopores in semiconductor materials with advantageous pore size, spacing, pore volume, material thickness, and other aspects. Porous and nanoporous materials also are provided.

公开(公告)号：US10128341B2

公开(公告)日：2018-11-13

申请号：US15462620

申请日：2017-03-17

Applicant: Massachusetts Institute of Technology

Inventor： Jeffrey C. Grossman ,  Brendan Derek Smith ,  Jatin Jayesh Patil ,  Nicola Ferralis

IPC: H01L21/306 ,  H01L29/32 ,  H01L29/16

Abstract: Methods for forming nanoporous semiconductor materials are described. The methods allow for the formation of micron-scale arrays of sub-10 nm nanopores in semiconductor materials with narrow size distributions and aspect ratios of over 400:1.

公开(公告)号：US20170341034A1

公开(公告)日：2017-11-30

申请号：US15593298

申请日：2017-05-11

Applicant: Massachusetts Institute of Technology

Inventor： Shreya H. Dave ,  Brent Keller ,  Ggoch Ddeul Han ,  Jeffrey C. Grossman

IPC: B01D71/02 ,  C01B32/198

CPC classification number: B01D71/021 ,  B01D67/0093 ,  B01D71/024 ,  B01D2323/30 ,  B32B3/26 ,  B32B3/266 ,  B32B7/10 ,  B32B9/007 ,  B32B9/041 ,  B32B15/082 ,  B32B15/085 ,  B32B15/09 ,  B32B27/283 ,  B32B27/285 ,  B32B27/286 ,  B32B27/302 ,  B32B27/304 ,  B32B27/308 ,  B32B27/32 ,  B32B27/322 ,  B32B2307/20 ,  B32B2307/308 ,  B32B2307/732 ,  B32B2313/04 ,  C01B32/198

Abstract: Membranes comprising graphene oxide sheets and associated filter media and methods are provided. In some embodiments, a membrane may comprise graphene oxide sheets that have undergone one or more chemical treatments. The chemical treatment(s) may impart beneficial properties to the membrane, such as a relatively small d-spacing, compatibility with a broad range of environments, physical stability, and charge neutrality. For example, the graphene oxide sheets may undergo one or more chemical treatments that form chemical linkages between at least a portion of the graphene oxide sheets in the membrane. Such chemical linkages may impart a small d-spacing, broad compatibility, and/or allow relatively thick membranes to be formed. In certain embodiments, the graphene oxide sheets may undergo one or more chemical treatment that imparts relative charge neutrality to the membrane by altering the ionizability of certain functional groups. Graphene oxide membranes, described herein, can be used for a wide range applications.

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.

公开(公告)号：US20150228805A1

公开(公告)日：2015-08-13

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

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.

Abstract translation: 一种用于制造模拟和数字电子学的方法和装置，其包括掺杂有导电颗粒的可堆置材料的复合材料。 微机电系统（MEMS）装置具有由复合材料制成的通道，其中通道形成器件的主导通路径。 在施加电压时，电容执行器挤压复合材料，使其变得导电。 可挤压装置包括控制电极，以及电气和机械连接到两个端子电极的复合体。 通过相对于第一端子电极向控制电极施加电压，在控制电极和第一端子电极之间产生电场。 该电场导致控制电极和第一端子电极之间的吸引力，其压缩复合材料并且能够电控制从第一端子电极通过通道到第二端子电极的电子传导。