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公开(公告)号：US20220359824A1
公开(公告)日：2022-11-10
申请号：US17763414
申请日：2020-09-25
发明人： Andrea Carlo Ferrari , George Kakavelakis , Konstantinos Dimos , Colm O'Riada , Luigi Occhipinti
IPC分类号： H01L51/00 , H01L51/50 , H01L31/0224 , C09D11/52 , C23C16/26
摘要： Semiconductor devices comprising: a semiconductor device comprising: a first electrode comprising conductive material, wherein the conductive material is deposited by ink deposition (for example, layered material inks such as graphene and/or graphite), or wherein the conductive material comprises CVD grown graphene or carbon nanotubes; a first charge transportation layer, wherein the first charge transportation layer is doped with the conductive material of the first electrode; an optional insulation layer; a perovskite active layer; a second charge transportation layer; and a second electrode.
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公开(公告)号：US11869728B2
公开(公告)日：2024-01-09
申请号：US17617671
申请日：2020-04-29
发明人： Shahab Akhavan , Amin Taheri Najafabadi , Ilya Goykhman , Luigi Occhipinti , Andrea Carlo Ferrari
IPC分类号： H10K30/30 , H10K30/53 , H10K30/65 , H10K50/135 , H10K50/10 , H10K71/12 , H01G9/20 , G01N27/12 , H01G9/00
CPC分类号： H01G9/2086 , G01N27/125 , H01G9/0036 , H01G9/2009 , H10K30/30 , H10K30/53 , H10K30/65 , H10K50/135 , H10K50/182 , H10K71/12
摘要： We disclose herein a hetero-structure comprising: a curved material; at least one layer of a first material rolled around the curved material; at least one intermediate layer rolled on the at least one layer of the first material; and at least one layer of a second material rolled around the at least one intermediate layer.
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公开(公告)号：US11753508B2
公开(公告)日：2023-09-12
申请号：US16649055
申请日：2018-09-21
CPC分类号： C08J3/12 , C08J3/02 , C08J3/20 , C08J3/215 , C08K3/042 , C01B19/00 , C01B19/007 , C08J2300/22 , C08J2377/02 , C08K2201/011
摘要： A method for treating polymer particles is disclosed. Polymer particles and a liquid are provided. The method includes the following steps (a) and (b). (a) Mixing said polymer particles with said carrier liquid to form a dispersion of said particles in said carrier liquid at a concentration of at least 0.1 g/L, based on the volume of the dispersion. (b) Subjecting the dispersion to microfluidization treatment thereby causing particle stretching, particle size reduction and increasing the surface area per unit mass of the polymer particles. Also disclosed is a particulate composition comprising polymer particles mixed with nanoplates derived from a layered material, wherein the particulate composition has a BET surface area of at least 10 m2/g. Furthermore, there is disclosed a method for the manufacture of a component formed of a composite of a polymer with a dispersion of nanoplates. The particulate composition is provided as a precursor particulate. Then the precursor particulate is formed into the component.
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公开(公告)号：US10906814B2
公开(公告)日：2021-02-02
申请号：US15766676
申请日：2016-10-07
摘要： A method for producing nanoplates derived from a layered material, includes the steps: (a) mixing particles of said layered material with a carrier liquid to form a dispersion of said particles in said carrier liquid; (b) pressurizing the dispersion to a pressure of at least 10 kpsi; and (c) forcing the dispersion along a microfluidic channel under said pressure, to apply a shear rate of at least 105 s−1 to said particles in the dispersion. Exfoliation of nanoplates from said particles is thereby caused. The nanoplates may be graphene nanoplates, for example. Steps (b) and (c) may be repeated for a number of cycles in order to promote exfoliation. The method may be carried out using a microfluidizer.
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公开(公告)号：US11616161B2
公开(公告)日：2023-03-28
申请号：US17280791
申请日：2019-09-30
IPC分类号： H01L31/103 , H01L31/028 , H01L31/112
摘要： A photodetector comprising an optical waveguide structure comprising at least three stripes spaced from one another such that a slot is present between each two adjacent stripes of the at least three stripes. A graphene absorption layer is provided over or underneath the at least three stripes. There is an electrode for each stripe, over or underneath the graphene absorption layer. The photodetector is configured such that two adjacent electrodes are biased using opposite polarities to create a p-n junction effect in a portion of the graphene absorption layer. In particular the portion of the graphene absorption layer is located over or underneath each respective slot between said each two adjacent stripes.
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公开(公告)号：US20200291192A1
公开(公告)日：2020-09-17
申请号：US16649055
申请日：2018-09-21
摘要： A method for treating polymer particles is disclosed. Polymer particles and a liquid are provided. The method includes the following steps (a) and (b). (a) Mixing said polymer particles with said carrier liquid to form a dispersion of said particles in said carrier liquid at a concentration of at least 0.1 g/L, based on the volume of the dispersion. (b) Subjecting the dispersion to microfluidization treatment thereby causing particle stretching, particle size reduction and increasing the surface area per unit mass of the polymer particles. Also disclosed is a particulate composition comprising polymer particles mixed with nanoplates derived from a layered material, wherein the particulate composition has a BET surface area of at least 10 m2/g. Furthermore, there is disclosed a method for the manufacture of a component formed of a composite of a polymer with a dispersion of nanoplates. The particulate composition is provided as a precursor particulate. Then the precursor particulate is formed into the component.
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公开(公告)号：US09718972B2
公开(公告)日：2017-08-01
申请号：US14437173
申请日：2013-10-22
IPC分类号： C09D11/52 , C09D11/037 , C09D11/322 , C08K3/08 , C09D11/02
CPC分类号： C09D11/02 , C08K3/08 , C08K2003/0806 , C09D11/037 , C09D11/322 , Y10T428/24901
摘要： An ink disclosed herein comprises a carrier liquid with a dispersion of flakes derived from a layered material. The thickness of each flake depends on the number of layers of the layered material in the flake. The thickness distribution of the flakes includes: at least 20% by number of single layer flakes; at least 40% by number cumulatively of single, double and triple layer flakes; or not more than 40% by number of flakes having ten or more layers. The layered material is selected from one or more of elemental materials such as graphene (typically derived from pristine graphite), metals (e.g., NiTe2, VSe2), semi-metals (e.g., WTa2, TcS2), semiconductors (e.g., WS2, WSe2, MoS2, MoTe2, TaS2, RhTe2, PdTe2), insulators (e.g., h-BN, HfS2), superconductors (e.g., NbS2, NbSe2, NbTe2, TaSe2) and topological insulators and thermo-electrics (e.g., Bi2Se3, Bi2Te3). Also disclosed are methods of manufacturing suitable inks and uses of the inks.
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