公开(公告)号：US10854798B2

公开(公告)日：2020-12-01

申请号：US16589824

申请日：2019-10-01

申请人： Nanosys, Inc.

发明人： Shihai Kan ,  Jay Yamanaga ,  Charles Hotz ,  Jason Hartlove ,  Veeral Hardev ,  Jian Chen ,  Christian Ippen ,  Wenzhou Guo ,  Robert Wilson

IPC分类号： H01L33/56 ,  H01L51/52 ,  H01L33/50 ,  C09K11/70 ,  C09K11/88 ,  C09K11/02 ,  B82Y40/00 ,  C09K11/56 ,  B82Y20/00 ,  B82Y30/00

摘要： Quantum dots and methods of making quantum dots are described. A method begins with forming quantum dots having a core-shell structure with a plurality of ligands on the shell structure. The method includes exchanging the plurality of ligands with a plurality of second ligands. The plurality of second ligands have a weaker binding affinity to the shell structure than the plurality of first ligands. The plurality of second ligands are then exchanged with hydrolyzed alkoxysilane to form a monolayer of hydrolyzed alkoxysilane on a surface of the shell structure. The method includes forming a barrier layer around the shell structure by using the hydrolyzed alkoxysilane as a nucleation center.

公开(公告)号：US11549058B2

公开(公告)日：2023-01-10

申请号：US16751632

申请日：2020-01-24

申请人： Nanosys, Inc.

发明人： Ilan Jen-La Plante ,  Yeewah Annie Chow ,  John J. Curley ,  Wenzhou Guo ,  Alexander Tu ,  Chunming Wang

IPC分类号： C09K11/70 ,  C09K11/02 ,  H01L33/00 ,  H01L33/06 ,  B82Y20/00 ,  B82Y40/00

摘要： This disclosure pertains to the field of nanotechnology. The disclosure provides nanostructure compositions comprising (a) at least one population of nanostructures; (b) at least one metal halide bound to the surface of the nanostructures; and (c) at least one metal carboxylate bound to the surface of the nanostructures. The nanostructure compositions have high quantum yield, narrow emission peak width, tunable emission wavelength, and colloidal stability. Also provided are methods of preparing the nanostructure compositions. And, nanostructure films and molded articles comprising the nanostructure compositions are also provided.

公开(公告)号：US11407940B2

公开(公告)日：2022-08-09

申请号：US17166788

申请日：2021-02-03

申请人： Nanosys, Inc.

发明人： Ravisubhash Tangirala ,  Jay Yamanaga ,  Wenzhou Guo ,  Christopher Sunderland ,  Ashenafi Damtew Mamuye ,  Chunming Wang ,  Eunhee Hwang ,  Nahyoung Kim

IPC分类号： C09K11/02 ,  C09K11/62 ,  B32B15/04 ,  B32B15/09 ,  B32B17/06 ,  B29B7/90 ,  C08J5/18 ,  G02B1/00 ,  G02F1/13357 ,  G02F1/1335 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00

摘要： Disclosed are films comprising Ag, In, Ga, and S (AIGS) nanostructures and at least one ligand bound to the nanostructures. In some embodiment, the AIGS nanostructures have a photon conversion efficiency of greater than 32% and a peak wavelength emission of 480-545 nm. In some embodiments, the nanostructures have an emission spectrum with a FWHM of 24-38 nm.

公开(公告)号：US11634629B2

公开(公告)日：2023-04-25

申请号：US16925786

申请日：2020-07-10

申请人： Nanosys, Inc.

发明人： Daekyoung Kim ,  Wenzhou Guo ,  Alexander Tu ,  Yeewah Annie Chow ,  Diego Barrera ,  Christian Ippen ,  Benjamin Newmeyer ,  Ruiqing Ma

IPC分类号： H01L33/50 ,  C09K11/88 ,  H01L33/06 ,  H01L29/06 ,  C09K11/70

摘要： The invention is in the field of nanostructure synthesis. Provided are highly luminescent core/shell nanostructures with zinc fluoride and zinc acetate bound to their surface. Also provided are methods of preparing the nanostructures, films comprising the nanostructures, and devices comprising the nanostructures.

公开(公告)号：US11360250B1

公开(公告)日：2022-06-14

申请号：US17510638

申请日：2021-10-26

申请人： Nanosys, Inc.

发明人： Wenzhou Guo ,  Ravisubhash Tangirala ,  Chunming Wang ,  Charles Hotz ,  Alain Barron

IPC分类号： G02B5/22 ,  C01G15/00 ,  G02B1/04 ,  B82Y20/00

摘要： Disclosed are stable films comprising Ag, In, Ga, and S (AIGS) nanostructures, or more one metal alkoxides, one or more metal alkoxide hydrolysis products, one or more metal halides, one or more metal halide hydrolysis products, one or more organometallic compounds, or one or more organometallic hydrolysis products, or combinations thereof, and at least one ligand bound to the nanostructures. In some embodiments, the AIGS nanostructures have a photon conversion efficiency of greater than 32% and a peak wavelength emission of 480-545 nm. In some embodiments, the nanostructures have an emission spectrum with a FWHM of 24-38 nm. In some embodiments, the nanostructures have a photon conversion efficiency (PCE) of at least 30% after being stored for 24 hours under yellow light and air storage conditions.

公开(公告)号：US10316250B2

公开(公告)日：2019-06-11

申请号：US15599848

申请日：2017-05-19

申请人： NANOSYS, Inc.

发明人： Wenzhou Guo ,  Christian Ippen ,  Charles Hotz ,  Rose Beeler ,  Jared Lynch ,  Shihai Kan ,  Jonathan Truskier ,  Minghu Tu

IPC分类号： C09K11/88 ,  B82Y40/00 ,  B82Y20/00 ,  C09K11/02 ,  C09K11/56 ,  C09K11/70

摘要： Highly luminescent nanostructures, particularly highly luminescent quantum dots, comprising a nanocrystal core are provided. Also provided are methods of increasing the sphericity of nanostructures comprising subjecting nanocrystal cores to an acid etch step, an annealing step, or a combination of an acid etch step and an annealing step.

公开(公告)号：US11053439B2

公开(公告)日：2021-07-06

申请号：US16782250

申请日：2020-02-05

申请人： NANOSYS, INC.

发明人： John J. Curley ,  Alexander Tu ,  Wenzhou Guo ,  Chunming Wang ,  Christian Ippen ,  Charles Hotz

IPC分类号： C09K11/88 ,  C09K11/08 ,  G02F1/1333 ,  G02F1/13357 ,  B82Y20/00 ,  B82Y40/00

摘要： The invention relates to highly luminescent nanostructures with strong blue light absorbance, particularly core/shell nanostructures comprising an In(1-x)GaxP core and ZnSe and/or ZnS shell layers, wherein 0