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公开(公告)号：US11630037B2
公开(公告)日：2023-04-18
申请号：US16644846
申请日：2018-09-18
摘要： A particle sensing device is disclosed for sensing particles entrained in a gas, distribution of particle sizes including a first size range (e.g. PM2.5) and a second size range (e.g. PM10), larger than the first size range. A thermophoretic impulse is applied to the entrained particles. The device has a a first sensor, downstream of the thermophoretic impulse region. The thermophoretic impulse, the flow of gas and gravity combine to cause at least some of the particles to follow respective trajectories within the sampling volume. An interception unit is interposed between the thermophoretic impulse region and the first sensor, to intercept the respective trajectories of particles of the second size range but not respective trajectories of particles of the first size range. The first sensor is located to intercept and detect the respective trajectories of particles of the first size range.
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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：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：US20200284710A1
公开(公告)日：2020-09-10
申请号：US16644846
申请日：2018-09-18
摘要： A particle sensing device is disclosed for sensing particles entrained in a gas. Gas having entrained particles with a distribution of particle sizes including a first size range (e.g. PM2.5) and a second size range (e.g. PM10), larger than the first size range, flows in a sampling volume. A thermophoretic impulse is applied to the entrained particles. The device has a first sensing region with a first sensor, downstream of the thermophoretic impulse region. The thermophoretic impulse, the flow of gas and gravity combine to cause at least some of the particles to follow respective trajectories within the sampling volume. The device also has an interception region, interposed between the thermophoretic impulse region and the first sensing region. An interception unit is located to intercept the respective trajectories of particles of the second size range but not respective trajectories of particles of the first size range. The first sensor element is located to intercept the respective trajectories of particles of the first size range and to detect particles of the first size range.
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