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1.发明公开公开(公告)号：US20240351906A1
公开(公告)日：2024-10-24
申请号：US18479939
申请日：2023-10-03
发明人： Jihoon CHOI , Min-Gi JEON
CPC分类号： C01G21/006 , C09K11/665 , C01P2002/01 , C01P2002/34 , C01P2002/72 , C01P2002/82 , C01P2002/85 , C01P2004/64
摘要： A perovskite nanocrystal having improved colloidal stability and a preparation method thereof are proposed. The perovskite nanocrystal includes a CsPbX3 (X is halogen) perovskite nanocrystal and a hydrazinium (NH2—NH3+) ligand bonded to a surface of the CsPbX3 perovskite nanocrystal.
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公开(公告)号：US20240271037A1
公开(公告)日：2024-08-15
申请号：US18567543
申请日：2022-07-06
发明人： Tze Chien SUM , Huajun He
CPC分类号： C09K11/025 , A61K49/0067 , C09K11/665 , C09K11/7705 , B82Y5/00 , B82Y20/00 , B82Y40/00
摘要： The present invention relates to a nanocrystal having a core-shell structure, wherein the core comprises a core perovskite structure, and the shell comprises a shell perovskite structure and a compound comprising silicon and oxygen, wherein the shell per-ovskite structure is different from the core perovskite structure and comprises a low-dimensional perovskite structure that is doped 5 with a metal halide comprising a monovalent, divalent or trivalent metal ion. The present invention also relates to a process for preparing the nanocrystal, a substrate comprising the nanocrystal and the use of the nanocrystal.
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公开(公告)号：US12012538B2
公开(公告)日：2024-06-18
申请号：US17134381
申请日：2020-12-26
摘要： A luminescent composite material and a preparation method therefor. The luminescent composite material is prepared by mixing a precursor of a quantum dot and an oxide or a precursor thereof followed by high-temperature calcination. Compared with traditional methods, the method provided herein is a simple and low-cost synthesis process without using solvents, and is suitable for large-scale production. The luminescent composite material has high quantum efficiency, luminous intensity and luminous color purity and good photothermal stability, which can provide basis for theoretical research and applications of the luminescent composite material in high-performance photoluminescence devices, lasers and nonlinear optical devices.
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公开(公告)号：US11976227B2
公开(公告)日：2024-05-07
申请号：US17259712
申请日：2019-07-12
发明人： Nobuya Sakai , Bernard Wenger , Henry James Snaith
CPC分类号： C09K11/665 , C01G21/16 , C07F1/005 , C09K11/06 , H01L31/055 , H01L33/502 , C01P2002/72 , C01P2004/03 , C01P2006/40 , C09K2211/10
摘要： The invention relates to a process for producing a crystalline A/M/X material, which crystalline A/M/X material comprises a compound of formula [A]a[M]b[X]c wherein: [A] comprises one or more A cations; [M] comprises one or more M cations which are metal or metalloid cations; [X] comprises one or more X anions; a is a number from 1 to 6; b is a number from 1 to 6; and c is a number from 1 to 18. The process is capable of producing crystalline A/M/X materials while precisely controlling their stoichiometry, leading to products with finely tunable optical properties such as peak emission wavelength. The invention also relates to process for producing a thin film comprising the crystalline A/M/X material of the invention, and to a thin film obtainable by the process of the invention. An optoelectronic device comprising the thin film is also provided.
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公开(公告)号：US11888098B2
公开(公告)日：2024-01-30
申请号：US16632942
申请日：2018-07-26
发明人： Shota Naito , Kentaro Mase
IPC分类号： C09K11/02 , C09K3/14 , C09K11/66 , H01L33/50 , H01L33/56 , G02F1/13357 , H01L25/075 , H01L33/28
CPC分类号： H01L33/56 , C09K11/02 , C09K11/66 , C09K11/665 , G02F1/133603 , H01L25/0753 , H01L33/28
摘要： The present disclosure relates to a light-emitting composition containing a perovskite compound and inorganic fine particles.
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6.发明授权公开(公告)号：US11737347B2
公开(公告)日：2023-08-22
申请号：US17034054
申请日：2020-09-28
发明人： Byunghwa Seo , YongChurl Kim , Hyungjun Kim , Yong Joo Lee
IPC分类号： H10K85/10 , C09K11/66 , C08L39/08 , C01G21/00 , C08L25/06 , B05D3/10 , C09K11/02 , C09D125/08 , C09D139/08 , H10K50/11
CPC分类号： H10K85/141 , B05D3/107 , C01G21/006 , C08L25/06 , C08L39/08 , C09D125/08 , C09D139/08 , C09K11/02 , C09K11/664 , C09K11/665 , H10K50/11
摘要： A thin film includes a luminescent compound represented by Formula 1 and a random copolymer, wherein the random copolymer includes a first repeating unit including at least one aromatic ring, and a second repeating unit including a heteroatom including at least one lone pair of electrons,
[A]n[Q]m[X]l Formula 1
wherein, in Formula 1,
A is a monovalent organic cation, a monovalent inorganic cation, or a combination thereof,
Q is a divalent metal cation, a divalent metalloid cation, or a combination thereof,
X is at least one monovalent halogen ion,
n is an integer from 1 to 3,
m is an integer from 1 to 2, and
l is an integer from 1 to 5.-
公开(公告)号：US20230242812A1
公开(公告)日：2023-08-03
申请号：US18003023
申请日：2021-06-22
CPC分类号： C09K11/665 , C01G21/16 , C30B23/06 , C30B29/12 , C23C14/0694 , C23C14/24 , C01P2002/34 , C01P2002/72 , G01T1/2023
摘要： A method for depositing an inorganic perovskite layer, comprising the following steps: providing a substrate and an inorganic target; positioning the substrate and the target in a close-space sublimation furnace; depositing an inorganic perovskite layer onto the substrate by sublimation of the target.
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公开(公告)号：US11691887B2
公开(公告)日：2023-07-04
申请号：US17259676
申请日：2019-07-12
发明人： Nobuya Sakai , Bernard Wenger , Henry James Snaith
CPC分类号： C01D17/00 , C09K11/665 , C01P2002/34 , C01P2006/60
摘要： The invention relates to perovskite compounds which have surprisingly good emission properties, particularly photoluminescent emission properties, in the blue region of the visible spectrum. These perovskites contain a mixture of cations or a mixture of halides, or both. The invention also relates to a photoactive material containing the perovskite species of the invention; to an optoelectronic device containing the photoactive material of the invention; to a method of producing blue light; and to the use of the photoactive material of the invention to emit blue light or as a phosphor.
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公开(公告)号：US11674079B2
公开(公告)日：2023-06-13
申请号：US17462428
申请日：2021-08-31
发明人： Jihyun Min , Eun Joo Jang , Yongwook Kim , Garam Park
IPC分类号： C09K11/02 , C09K11/66 , C09K11/88 , C08K3/16 , C09K11/61 , H10K59/38 , H10K102/00 , B82Y20/00 , B82Y40/00 , H01L27/32
CPC分类号： C09K11/025 , C08K3/16 , C09K11/02 , C09K11/616 , C09K11/665 , C09K11/88 , C09K11/881 , C09K11/883 , B82Y20/00 , B82Y40/00 , C08K2201/001 , H01L27/322 , H01L2251/5369 , Y10S977/774 , Y10S977/896 , Y10S977/95
摘要： A quantum dot having a perovskite crystal structure and including a compound represented by Chemical Formula 1:
ABX3+α Chemical Formula 1
wherein, A is a Group IA metal selected from Rb, Cs, Fr, and a combination thereof, B is a Group IVA metal selected from Si, Ge, Sn, Pb, and a combination thereof, X is a halogen selected from F, Cl, Br, and I, BF4, or a combination thereof, and α is greater than 0 and less than or equal to about 3; and wherein the quantum dot has a size of about 1 nanometer to about 50 nanometers.-
公开(公告)号：US20190241802A1
公开(公告)日：2019-08-08
申请号：US16271358
申请日：2019-02-08
发明人： Lance Michael Wheeler , Nathan Richard Neale , Nicholas Charles Anderson , Matthew Peter Hautzinger , Taylor Sierra Bliss
CPC分类号： C09K11/665 , C01G21/006 , C01G21/16 , C01P2002/34 , C01P2002/72 , C01P2004/04 , C07F7/24 , C09K11/06
摘要： The present disclosure relates to a perovskite sheet that includes two outer layers, each including A′X′; and a first layer that includes BX2, where B is a first cation, A′ is a second cation, X is a first anion, X′ is a second anion, and the first BX2 layer is positioned between the two outer layers.
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