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公开(公告)号：US11964879B2
公开(公告)日：2024-04-23
申请号：US16834622
申请日：2020-03-30
发明人： Steven Daniels , Nigel L. Pickett
IPC分类号： C01G39/06 , B01J27/02 , B01J27/047 , B01J27/051 , B01J27/057 , B01J35/23 , C01B19/00 , C01G9/02 , C01G39/00 , C01G41/00 , C09K11/68 , C30B7/14 , C30B19/12 , C30B29/16 , C30B29/46 , C30B29/60 , H01L21/02 , H01L29/15 , H01L29/24 , B01J23/06 , B01J23/28 , B01J23/30
CPC分类号： C01G39/06 , B01J27/02 , B01J27/047 , B01J27/051 , B01J27/0573 , B01J35/23 , C01B19/007 , C01G9/02 , C01G39/00 , C01G41/00 , C09K11/681 , C30B7/14 , C30B19/12 , C30B29/16 , C30B29/46 , C30B29/60 , H01L21/02403 , H01L21/02428 , H01L21/02568 , H01L21/02628 , H01L29/151 , H01L29/24 , B01J23/06 , B01J23/28 , B01J23/30 , C01P2002/84 , C01P2004/01 , C01P2004/04 , C01P2004/24 , C01P2004/42 , C01P2004/64 , H01L21/0237 , H01L21/024 , H01L21/02417 , H01L21/02521 , H01L21/02527 , H01L21/02532 , H01L21/02535 , H01L21/02565
摘要： A template-assisted method for the synthesis of 2D nanosheets comprises growing a 2D material on the surface of a nanoparticle substrate that acts as a template for nanosheet growth. The 2D nanosheets may then be released from the template surface, e.g. via chemical intercalation and exfoliation, purified, and the templates may be reused.
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公开(公告)号：US11339327B2
公开(公告)日：2022-05-24
申请号：US16211942
申请日：2018-12-06
发明人： Paul O'Brien , Nigel Pickett
IPC分类号： C09K11/88 , C09K11/89 , C30B7/00 , C09K11/74 , C09K11/02 , C01B19/00 , C30B7/10 , B82Y30/00 , C09K11/70 , C09K11/56 , C30B29/60 , C09K11/62 , C30B29/48 , B82Y40/00 , B82Y20/00
摘要： A method of producing nanoparticles comprises effecting conversion of a molecular cluster compound to the material of the nanoparticles. The molecular cluster compound comprises a first ion and a second ion to be incorporated into the growing nanoparticles. The conversion can be effected in the presence of a second molecular cluster compound comprising a third ion and a fourth ion to be incorporated into the growing nanoparticles, under conditions permitting seeding and growth of the nanoparticles via consumption of a first molecular cluster compound.
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公开(公告)号：US11274247B2
公开(公告)日：2022-03-15
申请号：US17084443
申请日：2020-10-29
发明人： Steven Daniels
IPC分类号： C09K11/68 , C09K11/02 , C07C211/08 , B82Y20/00 , C07F11/00 , C01B19/00 , C07C211/03 , C01B17/20 , C07C211/21 , C01G39/06 , C09K11/58 , C09K11/88 , C09K11/57 , C09K11/69 , C09K11/67 , C09K11/56 , C09K11/08 , C09K11/87 , C09K11/60 , B82Y30/00 , B82Y40/00 , C01G41/00
摘要： Methods of synthesizing transition metal dichalcogenide nanoparticles include forming a metal-amine complex, combining the metal-amine complex with a chalcogen source in at least one solvent to form a solution, heating the solution to a first temperature for a first period of time, and heating the solution to a second temperature that is higher than the first temperature for a second period of time.
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公开(公告)号：US20210159438A1
公开(公告)日：2021-05-27
申请号：US17045904
申请日：2019-04-05
发明人： Nigel PICKETT , James HARRIS , Nathalie GRESTY , Stuart STUBBS
IPC分类号： H01L51/50
摘要： An emissive layer of an electroluminescent device, such as an electroluminescent display device, includes a host matrix and a two-dopant system dispersed in the host matrix. The two-dopant system has a fluorescent emitter dopant and an emissive donor-assistant dopant. The emissive donor-assistant dopant can be a fluorescence donor-assistant dopant or a phosphorescence donor-assistant dopant. The physical distance between the fluorescent emitter dopant and the emissive donor-assistant dopant can be controlled by using various capping ligands, which are bound to a surface of the fluorescent emitter dopant.
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公开(公告)号：US10910525B2
公开(公告)日：2021-02-02
申请号：US16599931
申请日：2019-10-11
IPC分类号： H01L33/50 , B22F1/00 , B22F9/24 , C09C3/06 , C09K11/62 , B22F1/02 , B01J13/02 , C09K11/64 , C09K11/70 , C01B25/08 , H01L33/00 , C09B67/02 , B82Y20/00 , B82Y40/00
摘要： Quantum dot semiconductor nanoparticle compositions that incorporate ions such as zinc, aluminum, calcium, or magnesium into the quantum dot core have been found to be more stable to Ostwald ripening. A core-shell quantum dot may have a core of a semiconductor material that includes indium, magnesium, and phosphorus ions. Ions such as zinc, calcium, and/or aluminum may be included in addition to, or in place of, magnesium. The core may further include other ions, such as selenium, and/or sulfur. The core may be coated with one (or more) shells of semiconductor material. Example shell semiconductor materials include semiconductors containing zinc, sulfur, selenium, iron and/or oxygen ions.
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公开(公告)号：US10483440B2
公开(公告)日：2019-11-19
申请号：US15725768
申请日：2017-10-05
IPC分类号： H01L33/50 , C01B25/08 , H01L33/00 , B22F1/00 , B22F9/24 , C09C3/06 , C09K11/62 , B22F1/02 , B01J13/02 , C09K11/64 , C09K11/70 , C09B67/02 , B82Y20/00 , B82Y40/00
摘要： Quantum dot semiconductor nanoparticle compositions that incorporate ions such as zinc, aluminum, calcium, or magnesium into the quantum dot core have been found to be more stable to Ostwald ripening. A core-shell quantum dot may have a core of a semiconductor material that includes indium, magnesium, and phosphorus ions. Ions such as zinc, calcium, and/or aluminum may be included in addition to, or in place of, magnesium. The core may further include other ions, such as selenium, and/or sulfur. The core may be coated with one (or more) shells of semiconductor material. Example shell semiconductor materials include semiconductors containing zinc, sulfur, selenium, iron and/or oxygen ions.
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公开(公告)号：US20190198730A1
公开(公告)日：2019-06-27
申请号：US16290450
申请日：2019-03-01
IPC分类号： H01L33/50 , F21V8/00 , G02F1/1335 , C09K11/70 , H01L33/48 , C09K11/02 , H01L33/56 , C09K11/61
CPC分类号： H01L33/507 , C09K11/02 , C09K11/617 , C09K11/70 , G02B6/005 , G02B6/0073 , G02F1/133621 , G02F2001/133614 , H01L33/486 , H01L33/504 , H01L33/56 , H01L2933/0041 , H05B33/14 , Y02B20/181
摘要： LED devices emitting white light comprise a blue-emitting LED, green-emitting quantum dots (QDs) and red-emitting K2SiF6:Mn4+ (KSF) phosphor. A backlight unit (BLU) for a liquid crystal display (LCD) comprises one or more blue-emitting LEDs and a polymer film containing green-emitting QDs and KSF phosphor. The QDs and/or KSF phosphor may be encapsulated in beads that provide protection from oxygen and/or moisture.
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公开(公告)号：US20190177609A1
公开(公告)日：2019-06-13
申请号：US16277513
申请日：2019-02-15
摘要： Highly stable films containing semiconductor nanoparticles (“quantum dots”) are prepared from resins containing a fast-curing inner phase having a high glass transition temperature (Tg) and certain inner phase/outer phase combinations. The resins may comprise an inner phase and outer phase (but may appear to be a single phase due to their homogeneous appearance when viewed using an optical microscope). The method provides a highly scalable and cost-effective procedure for preparing films that are resistant to light, elevated temperatures, moisture, and oxygen.
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公开(公告)号：US10312418B2
公开(公告)日：2019-06-04
申请号：US15424556
申请日：2017-02-03
发明人： Imad Naasani , James Harris , Nigel Pickett
摘要： A light emitting layer including a plurality of light emitting particles embedded within a host matrix material. Each of said light emitting particles includes a population of semiconductor nanoparticles embedded within a polymeric encapsulation medium. A method of fabricating a light emitting layer comprising a plurality of light emitting particles embedded within a host matrix material, each of said light emitting particles comprising a population of semiconductor nanoparticles embedded within a polymeric encapsulation medium. The method comprises providing a dispersion containing said light emitting particles, depositing said dispersion to form a film, and processing said film to produce said light emitting layer.
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10.发明授权公开(公告)号：US10167545B2
公开(公告)日：2019-01-01
申请号：US15492185
申请日：2017-04-20
发明人： Stuart Stubbs
IPC分类号： C23C14/08 , H01L33/42 , H01L31/0224 , C23C14/34 , C03C17/245 , H01B1/08 , H01L31/18
摘要： An indium tin oxide film containing by weight about 90% In2O3 and about 10% SnO2 is prepared using a low-energy deposition sputter process on a substrate. The indium tin oxide film thus obtained has a carrier concentration on the order of 1020/cm3 and a carrier mobility greater than 30 cm2/Vs. The low carrier concentration results in an increased transmission in the near infra-red region, while the high carrier mobility results in good conductive properties.
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