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41.发明申请公开(公告)号：US20210309912A1
公开(公告)日：2021-10-07
申请号：US16765527
申请日：2020-04-24
发明人： Yanan WANG
摘要： A material of a light emitting layer, a manufacturing method thereof, and an electroluminescent device are disclosed. The material of the light emitting layer includes a spiral nanotube structure and luminescent particles. The manufacturing method of the material of the light emitting layer includes steps of manufacturing the spiral nanotube structure and steps of manufacturing a guest-host structure. The manufacturing method is easily achieved, and a compatibility of the material is high.
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公开(公告)号：US20210296618A1
公开(公告)日：2021-09-23
申请号：US17264336
申请日：2019-07-29
申请人： PEROLED LIMITED
发明人： Peter LEVERMORE
摘要： A light emitting device is provided. The device comprises a first electrode, a second electrode and at least two emissive layers. A first emissive layer of the at least two emissive layers is disposed over the first electrode. A second emissive layer of the at least two emissive layers is disposed over the first emissive layer. The first emissive layer is in contact with the second emissive layer. The second electrode is disposed over the second emissive layer. At least one emissive layer of the at least two emissive layers comprises a perovskite light emitting material. The device comprises at least one further emissive layer of the at least two emissive layers, wherein the at least one further emissive layer comprises a perovskite light emitting material, an organic light emitting material or a quantum dot light emitting material.
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公开(公告)号：US11078413B2
公开(公告)日：2021-08-03
申请号：US15669249
申请日：2017-08-04
发明人： Biwu Ma , Zhao Yuan , Chenkun Zhou
摘要： Provided herein are organic-inorganic hybrid-perovskites, including metal halide perovskites having a 1D crystal structure. The metal halide perovskites may be luminescent. The metal halide perovskites may include a dopant, including an emitter dopant. Methods of forming metal halide perovskites, and devices including the metal halide perovskites also are provided.
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公开(公告)号：US20210230480A1
公开(公告)日：2021-07-29
申请号：US17259712
申请日：2019-07-12
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：US20210230011A1
公开(公告)日：2021-07-29
申请号：US17259676
申请日：2019-07-12
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：US11059726B2
公开(公告)日：2021-07-13
申请号：US16247921
申请日：2019-01-15
发明人： Kuo-Huai Kuo , Yu-Pu Wang , Fu-Shan Chen
摘要： A fluorescent material includes at least one fluorescent compound having a structure formula of ABXZY3-Z as defined in the specification, a plurality of NH3+ group-containing ions bound to the fluorescent compound through protonation of amine groups of an amine composition, and a plurality of COO− group-containing ions bound to the fluorescent compound through deprotonation of carboxyl groups of an acid composition. The amine composition has a total hydrogen bonding Hansen solubility parameter (TδH) ranges from 2.4 to 3.3 (cal/cm3)1/2, and the acid composition has a total polar Hansen solubility parameter (TδP) which is less than 1.4 (cal/cm3)1/2.
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公开(公告)号：US20210202870A1
公开(公告)日：2021-07-01
申请号：US17267103
申请日：2019-08-21
摘要： The disclosed technology includes an infrared-emitting quantum dot comprising a core comprising a first semiconductor material, a shell comprising a second semiconductor material, and a gradient interface between the core and the shell. The disclosed technology also includes methods of manufacturing the same.
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公开(公告)号：US20210198568A1
公开(公告)日：2021-07-01
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：US20210171829A1
公开(公告)日：2021-06-10
申请号：US16747504
申请日：2020-01-20
申请人： National Taiwan University of Science and Technology , NATIONAL TAIWAN NORMAL UNIVERSITY , National Taiwan University
发明人： Chih-Hao Chiang , Ting-You Li , Meng-Lin Tsai , Ya-Ju Lee , Hsiang-Chieh Lee
摘要： 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.
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公开(公告)号：US20210130682A1
公开(公告)日：2021-05-06
申请号：US17259708
申请日：2019-07-12
摘要： 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.
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