公开(公告)号：US20240417619A1

公开(公告)日：2024-12-19

申请号：US18704949

申请日：2021-10-26

Applicant: XIAMEN UNIVERSITY

Inventor： Rongjun XIE ,  Tongtong XUAN ,  Tianliang ZHOU ,  Wenhao BAI

IPC: C09K11/66 ,  C09K11/55 ,  C09K11/61

Abstract: The present invention relates to a luminescent material and a Mini-LED device prepared by the luminescent material; the luminescent material is formed by compounding a porous material and a luminescent substance, and has a chemical formula of: N@AX·aPbX2·bMX2, where N denotes the porous material, @ denotes compounding, and AX·aPbX2·bMX2 denotes the luminescent substance, where A is at least one of Cs and Rb, X is at least one of Cl, Br, and I; M is at least one of Mg, Ca, Sr, Ba, Zn, and Cu. and 0.7

公开(公告)号：US20240392188A1

公开(公告)日：2024-11-28

申请号：US18628728

申请日：2024-04-06

Applicant: WENZHOU XINXINTAIJING TECH. CO., LTD.

Inventor： Chao FAN ,  Xingliang DAI ,  Haiping HE ,  Zhizhen YE

IPC: C09K11/66

Abstract: The present disclosure provides a perovskite nanocrystal fluorescent material comprising a micro-porous template and/or a mesoporous template, a substrate, and a perovskite nanocrystal. A substrate is attached to an inner surface of the micro-porous template and/or the mesoporous template and the perovskite nanocrystal is grown on a surface of the substrate. A melting point of the substrate is higher than a melting point of the perovskite nanocrystal. The perovskite nanocrystal fluorescent material has a high luminescence rate and high luminescence stability. The present disclosure also discloses a method for preparing the perovskite nanocrystal fluorescent material. The preparation method does not require organic solvents, and the preparation process is more green and environmentally friendly. The melt crystallization method adopted has a simple and controllable process, which is suitable for large-scale preparation of the perovskite nanocrystal. The present disclosure also discloses the application of the perovskite nanocrystal fluorescent material.

公开(公告)号：US12104106B2

公开(公告)日：2024-10-01

申请号：US17360064

申请日：2021-06-28

Applicant: Alliance for Sustainable Energy, LLC

Inventor： Joseph Matthew Luther ,  Matthew Craig Beard ,  Young-Hoon Kim

IPC: C09K11/66 ,  C07F7/24 ,  C09K11/02 ,  G02B1/08 ,  H01F10/32 ,  H10K30/10 ,  H10N50/80

CPC classification number: C09K11/664 ,  C07F7/24 ,  C09K11/025 ,  C09K11/665 ,  H01F10/3259 ,  H10N50/80 ,  G02B1/08 ,  H10K30/10

Abstract: The present disclosure relates to a composition that includes a nanocrystalline core that includes a perovskite and having an outer surface, and a chiral molecule having a functional group, where the functional group is bonded to a first portion of the outer surface, and the composition is capable of circularly polarized luminescence (CPL). In some embodiments of the present disclosure, the composition is capable of absorbing circularly-polarized light.

公开(公告)号：US12091596B2

公开(公告)日：2024-09-17

申请号：US18200278

申请日：2023-05-22

Applicant: AVANTAMA AG

Inventor： Norman Albert Lüchinger ,  Marek Oszajca ,  Patrick Kissel ,  Loredana Protesescu ,  Maksym Kovalenko ,  Franziska Krieg

IPC: C09K11/02 ,  B82Y20/00 ,  B82Y30/00 ,  C07F7/24 ,  C09K11/66

CPC classification number: C09K11/02 ,  B82Y20/00 ,  B82Y30/00 ,  C07F7/24 ,  C09K11/025 ,  C09K11/664 ,  C09K11/665

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：US12072570B2

公开(公告)日：2024-08-27

申请号：US17923991

申请日：2021-07-13

Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED

Inventor： Yoshihiro Harada ,  Yoshifumi Komatsu ,  Tomohiro Fukuura

IPC: G02F1/1335 ,  C09K11/66 ,  C09K11/88 ,  F21V8/00 ,  B82Y20/00

CPC classification number: G02F1/133514 ,  C09K11/665 ,  C09K11/883 ,  G02B6/005 ,  G02F1/133614 ,  B82Y20/00

Abstract: A display device including a light source (A), a color conversion layer (B), and a color filter (C), wherein the color conversion layer (B) contains quantum dots (B-r) that emit red light, the color filter (C) has a blue color filter (C-b), a green color filter (C-g), and a red color filter (C-r), and the display device satisfies α≤1.80 and (II) β≥63.0.

公开(公告)号：US12054656B2

公开(公告)日：2024-08-06

申请号：US17276723

申请日：2019-08-02

Applicant: Zhijing Nanotech Co., LTD ,  Beijing Institute of Technology

Inventor： Fei Li ,  Haizheng Zhong ,  Jingjing Wang

IPC: C09K11/02 ,  C09K11/06 ,  C09K11/66 ,  H10K85/30 ,  G02F1/13357 ,  H10K50/115

CPC classification number: C09K11/025 ,  C09K11/06 ,  C09K11/665 ,  H10K85/30 ,  C09K2211/10 ,  C09K2211/181 ,  C09K2211/188 ,  G02F1/133617 ,  H10K50/115

Abstract: The present application discloses a composite light-emitting material, a production method thereof, and use thereof, wherein the composite light-emitting material has a perovskite nanomaterial and a matrix; the perovskite nanomaterial comprises γ-CsPbI3 and an addition element M; and the addition element M is selected from at least one of Li, Na, K, and Rb.

公开(公告)号：US12044366B2

公开(公告)日：2024-07-23

申请号：US17879156

申请日：2022-08-02

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 ,  H04B10/116 ,  H05B33/14 ,  B82Y20/00 ,  F21Y115/10 ,  F21Y115/30

CPC classification number: F21K9/64 ,  C09K11/025 ,  C09K11/665 ,  C09K11/883 ,  H04B10/116 ,  H05B33/14 ,  B82Y20/00 ,  F21Y2115/10 ,  F21Y2115/30

Abstract: A device including a material including halide perovskite nanocrystals forming a film and configured to receive first electromagnetic radiation having a first wavelength emitted by an excitation source, the first electromagnetic radiation is modulated to include information prior to being received by the material, the material is configured to absorb the first electromagnetic radiation including the information and to emit second electromagnetic radiation having a second wavelength and also including the information, the second wavelength being in the visible range, and the first wavelength of the first electromagnetic radiation is shorter than the visible range; a detector configured to receive the second electromagnetic radiation and to extract the information; and a screen connected to the detector and configured to display the information.

公开(公告)号：US20240218245A1

公开(公告)日：2024-07-04

申请号：US18557411

申请日：2022-04-27

Applicant: UNIVERSITY OF KENTUCKY RESEARCH FOUNDATION

Inventor： Xiaobing Tang ,  Fuqian Yang

IPC: C09K11/66 ,  C01G21/00 ,  C07F19/00 ,  C09K11/06 ,  C30B7/14 ,  C30B29/12

CPC classification number: C09K11/665 ,  C01G21/006 ,  C07F19/005 ,  C09K11/06 ,  C30B7/14 ,  C30B29/12 ,  C01P2002/34 ,  C01P2002/52 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2002/85 ,  C01P2004/04 ,  C09K2211/181

Abstract: This disclosure relates to an environmental-friendly and cost-efficient approach to synthesize CsPbBr3 powders in a large scale at room temperature with water. Using ultrasonication and centrifugation, CsPbBr3 nanocrystals can be obtained with green (˜522 nm) and blue (˜493 nm) emissions from the powders. The photoluminescence quantum yield of the blue-emitting nanocrystals is 80%, which is much larger than 61.4% of the CsPbBr3 nanocrystals made by an anti-solvent method. The green-emitting nanocrystals exhibit better stability than those made by the anti-solvent method over a period of 9 days. The method opens a new avenue to potentially produce inorganic and/or inorganic-organic hybrid halide perovskite nanocrystals without harmful organic solvents used in precursor solutions.

公开(公告)号：US20240067875A1

公开(公告)日：2024-02-29

申请号：US18237371

申请日：2023-08-23

Applicant: INDIAN OIL CORPORATION LIMITED

Inventor： Anirban DUTTA ,  Mukesh Kumar VYAS ,  Jyotiranjan OTA ,  Samik Kumar HAIT ,  Chandrasekaran KANNAN ,  Sankara Sri Venkata RAMAKUMAR

IPC: C09K11/66 ,  C01G21/00

CPC classification number: C09K11/665 ,  C01G21/006 ,  C01P2002/34 ,  C01P2002/54 ,  C01P2002/72 ,  C01P2002/77 ,  C01P2002/84 ,  C01P2002/88

Abstract: The present invention relates to a process for the synthesis of B-site doped ABX3 perovskite nanocrystals. The process comprises the steps of loading non-halide precursors of A, B, and dopant in three neck flasks along with long chain acid and olefin, purging of the reaction mixture under heating, and finally injection of alkylammonium chloride stock solution in the reaction mixture at a desired temperature. Introducing transition metal such as Mn and other rare earths, etc., as dopants in the perovskite nanocrystals to induce a new optical window.

公开(公告)号：US11820927B2

公开(公告)日：2023-11-21

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 ,  H01L31/055 ,  H01L33/50 ,  H10K30/87 ,  H10K50/125

CPC classification number: C09K11/02 ,  C09K11/665 ,  H01L31/055 ,  H01L33/502 ,  H10K30/87 ,  H10K50/125

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.