公开(公告)号：US20170271604A1

公开(公告)日：2017-09-21

申请号：US15309797

申请日：2015-05-08

Applicant: Massachusetts Institute of Technology

Inventor： Patrick R. Brown ,  Donghun KIM ,  Moungi G. Bawendi ,  Jeffrey C. Grossman ,  Vladimir Bulovic

IPC: H01L51/42 ,  H01L51/00 ,  H01L51/44

CPC classification number: H01L51/426 ,  H01L31/0296 ,  H01L31/03845 ,  H01L51/0077 ,  H01L51/0558 ,  H01L51/441 ,  H01L2251/301 ,  Y02E10/549

Abstract: A method of improving performance of a photovoltaic device can include modifying a surface energy level of a nanocrystal through ligand exchange. A photovoltaic device can include a layer that includes a nanocrystal with a surface energy modified through ligand exchange.

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：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。