公开(公告)号：US20210171829A1

公开(公告)日：2021-06-10

申请号：US16747504

申请日：2020-01-20

Applicant: National Taiwan University of Science and Technology ,  NATIONAL TAIWAN NORMAL UNIVERSITY ,  National Taiwan University

Inventor： Chih-Hao Chiang ,  Ting-You Li ,  Meng-Lin Tsai ,  Ya-Ju Lee ,  Hsiang-Chieh Lee

IPC: C09K11/77 ,  C09K11/66

Abstract: Provided is a method for synthesizing a perovskite quantum dot film, including: preparing a cellulose nanocrystal (CNC) solution, wherein the CNC solution includes a plurality of CNCs with sulfate groups; preparing a precursor solution; mixing the CNC solution and the precursor solution to form a mixed solution; and filtering and drying the mixed solution to form a perovskite quantum dot film.

公开(公告)号：US20210130682A1

公开(公告)日：2021-05-06

申请号：US17259708

申请日：2019-07-12

Applicant: OXFORD UNIVERSITY INNOVATION LIMITED

Inventor： Nobuya Sakai ,  Bernard Abbas Wenger ,  Henry James Snaith

IPC: C09K11/02 ,  C09K11/66

Abstract: The present invention relates to a method for preparing a stabilised crystalline A/M/X material comprising an oxide of formula [Z]pOq and a compound of formula [A]a[M]b[X]c, wherein [Z] comprises at least one element Z capable of forming an oxide with a band gap of at least 3 eV; p and q are positive numbers; [A] comprises one or more A cations; [M] comprises one or more M cations; [X] comprises one or more X anions; a is an integer from 1 to 6; b is an integer from 1 to 6; and c is an integer from 1 to 18. Often, the stabilised crystalline A/M/X material is a perovskite. The invention also provides a stabilised crystalline A/M/X material, which can be produced by the process of the invention. The invention further provides materials and devices containing the stabilised crystalline A/M/X material of the invention.

公开(公告)号：US20210122976A1

公开(公告)日：2021-04-29

申请号：US16491800

申请日：2018-03-08

Applicant: Sumitomo Chemical Company, Limited

Inventor： Shota Naito ,  Yoshiaki Sakatani

IPC: C09K11/88 ,  C09K11/66 ,  C09K11/70 ,  C09K11/08 ,  C09K11/02

Abstract: The present invention relates to a mixture of a compound (1) and a compound (2). The compound (1) is a light-emitting perovskite compound which includes components A, B, and X, and the compound (2) is a light-emitting indium compound or light-emitting cadmium compound. The component A indicates a component positioned at each vertex of a hexahedron having the component B at the center in a perovskite type crystal structure and is a monovalent cation, the component X indicates a component positioned at each vertex of an octahedron having the component B at the center in the perovskite type crystal structure and is one or more kinds of anions selected from the group consisting of a halide ion and a thiocyanate ion, and the component B indicates a component positioned at the centers of the hexahedron where the component A is disposed at each vertex and the octahedron where the component X is disposed at each vertex in the perovskite type crystal structure and is a metal ion.

公开(公告)号：US20210122974A1

公开(公告)日：2021-04-29

申请号：US17122526

申请日：2020-12-15

Applicant: Avantama AG

Inventor： Norman Albert LÜCHINGER ,  Marek OSZAJCA ,  Patrick KISSEL ,  Loredana PROTESESCU ,  Maksym KOVALENKO ,  Franziska KRIEG

IPC: C09K11/77 ,  C09K11/66 ,  C07F7/24 ,  C07F9/142 ,  H01L51/52 ,  B82B1/00 ,  C30B29/12 ,  C30B29/54

Abstract: The present invention relates to the field of luminescent crystals (LCs), and more specifically to Quantum Dots (QDs) of formula A1aM2bXc, wherein the substituents are as defined in the specification. The invention provides methods of manufacturing such luminescent crystals, particularly by dispersing suitable starting materials in the presence of a liquid and by the aid of milling balls; to compositions comprising luminescent crystals and to electronic devices, decorative coatings; and to components comprising luminescent crystals.

公开(公告)号：US10957826B2

公开(公告)日：2021-03-23

申请号：US16196095

申请日：2018-11-20

Applicant: KABUSHIKI KAISHA TOSHIBA ,  TOSHIBA MATERIALS CO., LTD.

Inventor： Tatsunori Itoga ,  Ryoji Tsuda ,  Naotoshi Matsuda ,  Yoshitaka Funayama

IPC: H01L33/50 ,  C09K11/64 ,  C09K11/73 ,  C09K11/66 ,  C09K11/08 ,  C09K11/77 ,  H01L25/075

Abstract: According to one embodiment, a white light source includes a combination of a light emitting diode and phosphors. One of the phosphors is at least a cerium activated yttrium aluminum garnet-based phosphor. There is no light emission spectrum peak at which a ratio of a largest maximum value to a minimum value is greater than 1.9. The largest maximum value is largest among at least one maximum value present in a wavelength range of 400 nm to 500 nm in a light emission spectrum of white light emitted from the white light source. The minimum value is adjacent to the largest maximum value in a longer wavelength side of the light emission spectrum.

公开(公告)号：US10941340B2

公开(公告)日：2021-03-09

申请号：US16704613

申请日：2019-12-05

Applicant: TURUN YLIOPISTO

Inventor： Mika Lastusaari ,  Isabella Norrbo

IPC: C09K9/00 ,  C09K11/00 ,  G01T1/16 ,  G01T1/06 ,  C09K11/77 ,  C09K11/64 ,  C09K11/67 ,  C09K11/66 ,  C09K11/62

Abstract: A material represented by the following formula (I) (M′)8M″6M″′6O24(X,S)2:M″″  formula (I). Also disclosed is an ultraviolet radiation sensing material, an X-radiation sensing material, a device and a method for determining the intensity of ultraviolet radiation.

公开(公告)号：US10907092B2

公开(公告)日：2021-02-02

申请号：US15204171

申请日：2016-07-07

Applicant: Yajie Dong ,  Yanan Wang ,  Shin-Tson Wu ,  Juan He ,  Hao Chen ,  Jiangshan Chen

Inventor： Yajie Dong ,  Yanan Wang ,  Shin-Tson Wu ,  Juan He ,  Hao Chen ,  Jiangshan Chen

IPC: C09K11/06 ,  C09K11/66 ,  C09K11/02 ,  C08K5/56

Abstract: Methods of making luminescent perovskite-polymer composites are provided and structures using the same. Perovskite-polymer composites made by the method described herein are provided. The perovskite-polymer composite is useful in many applications including downconverters for backlight units (BLU) of liquid crystal displays (LCDs), as well as for and could be used for light emitting devices, lasers or as active absorber or passive luminescent concentrators for solar photovoltaic applications.

公开(公告)号：US10822542B2

公开(公告)日：2020-11-03

申请号：US15574089

申请日：2016-05-13

Applicant: Beijing Institute of Technology

Inventor： Haizheng Zhong ,  Qingchao Zhou ,  Feng Zhang ,  Hailong Huang

IPC: C09K11/02 ,  C09K11/06 ,  C09K11/75 ,  B82Y20/00 ,  H01L51/50 ,  H01L51/52 ,  H01L27/32 ,  C09K11/66 ,  H01L51/00 ,  G02F1/13357 ,  H01L41/18

Abstract: Provided is a composite luminescent material. The composite luminescent material comprises: a matrix; and perovskite nanoparticles. The perovskite nanoparticles are dispersed in the matrix, wherein the mass ratio of the perovskite nanoparticles matrix to the perovskite nanoparticles is 1:(1-50).

公开(公告)号：US20200332968A1

公开(公告)日：2020-10-22

申请号：US16891621

申请日：2020-06-03

Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Ibrahim DURSUN ,  Chao SHEN ,  Osman M. BAKR ,  Tien Khee NG ,  Boon OOI

IPC: F21K9/64 ,  C09K11/02 ,  C09K11/66 ,  C09K11/88 ,  H05B33/14 ,  H04B10/116

Abstract: Embodiments of the present disclosure provide devices and systems including a halide perovskite and/or phosphor to produce and/or communicate using visible light, and the like.

公开(公告)号：US10784388B2

公开(公告)日：2020-09-22

申请号：US15192361

申请日：2016-06-24

Applicant: THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO

Inventor： Jiang Tang ,  Andras Pattantyus-Abraham ,  Illan Kramer ,  Aaron Barkhouse ,  Xihua Wang ,  Gerasimos Konstantatos ,  Ratan Debnath ,  Edward H. Sargent

IPC: H01L31/0352 ,  C09K11/66 ,  H01L31/032 ,  H01L31/072 ,  H01L31/0224 ,  H01L31/0296 ,  H01L31/18 ,  B82Y20/00 ,  B82Y40/00

Abstract: Photovoltaic cells are fabricated in which the compositions of the light-absorbing layer and the electron-accepting layer are selected such that at least one side of the junction between these two layers is substantially depleted of charge carriers, i.e., both free electrons and free holes, in the absence of solar illumination. In further aspects of the invention, the light-absorbing layer is comprised of dual-shell passivated quantum dots, each having a quantum dot core with surface anions, an inner shell containing cations to passivate the core surface anions, and an outer shell to passivate the inner shell anions and anions on the core surface.