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公开(公告)号:US11742448B2
公开(公告)日:2023-08-29
申请号:US17586162
申请日:2022-01-27
发明人: John Hart , Daniel Derkacs , Zachary Bittner , Andrew Espenlaub
IPC分类号: H01L31/0725 , H01L31/0735 , H01L31/065 , H01L31/18
CPC分类号: H01L31/0725 , H01L31/065 , H01L31/0735 , H01L31/184
摘要: A multijunction solar cell including an upper first solar subcell having a first band gap and positioned for receiving an incoming light beam; and a second solar subcell disposed below and adjacent to and lattice matched with said upper first solar subcell, and having a second band gap smaller than said first band gap; wherein at least one of the solar subcells has a graded band gap throughout the thickness of at least a portion of its emitter layer and base layer.
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公开(公告)号:US20180226528A1
公开(公告)日:2018-08-09
申请号:US15938246
申请日:2018-03-28
发明人: John Hart , Zachary Bittner , Samantha Whipple , Nathaniel Miller , Daniel Derkacs , Paul Sharps
IPC分类号: H01L31/0725 , H01L31/0735 , H01L31/074 , H01L31/054 , H01L31/044 , H01L31/18
摘要: A solar cell comprising a bulk germanium silicon growth substrate; a diffused photoactive junction in the germanium silicon substrate; and a sequence of subcells grown over the substrate, with the first grown subcell either being lattice matched or lattice mis-matched to the growth substrate.
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公开(公告)号:US12051760B2
公开(公告)日:2024-07-30
申请号:US18221462
申请日:2023-07-13
发明人: John Hart , Daniel Derkacs , Zachary Bittner , Andrew Espenlaub
IPC分类号: H01L31/0735 , H01L31/065 , H01L31/0687 , H01L31/0693 , H01L31/0725
CPC分类号: H01L31/0735 , H01L31/065 , H01L31/0687 , H01L31/0693 , H01L31/0725
摘要: A multijunction solar cell including an upper first solar subcell having an emitter and base layers forming a photoelectric junction; a second solar subcell disposed under and adjacent to the upper first solar subcell, and having an emitter and base layers forming a photoelectric junction; and a third solar subcell disposed under and adjacent to the second solar subcell and having an emitter and base layers forming a photoelectric junction; wherein at least one of the base and emitter layers of at least a particular solar subcell from among the upper first solar subcell, the second solar subcell, and the third solar subcell has a graded band gap throughout at least a portion of thickness of its active layer adjacent to the photoelectric junction and being in a range of 20 to 300 MeV greater than a band gap in the active layer away from the photoelectric junction.
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公开(公告)号:US20230327045A1
公开(公告)日:2023-10-12
申请号:US18058393
申请日:2022-11-23
发明人: Daniel Derkacs , Zachary Bittner , John Hart , Clayton Cozzan
CPC分类号: H01L31/184 , C30B25/16 , H01L21/02293
摘要: A multijunction solar cell including an upper first solar subcell having a first band gap and positioned for receiving an incoming light beam; a second solar subcell disposed below the upper first solar subcell, and having a second band gap smaller than said first band gap; wherein a light scattering layer is provided below the second solar subcell and adjacent to the second solar subcell for redirecting the incoming light that has passed through the second solar subcell back into the second solar subcell to be scattered along longer path lengths in the second solar subcell.
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公开(公告)号:US11482636B2
公开(公告)日:2022-10-25
申请号:US17467160
申请日:2021-09-03
发明人: John Hart , Daniel Derkacs , Zachary Bittner , Andrew Espenlaub
IPC分类号: H01L31/0735 , H01L31/0693 , H01L31/065 , H01L31/0687 , H01L31/0725
摘要: A multijunction solar cell including an upper first solar subcell having a first band gap and positioned for receiving an incoming light beam; a second solar subcell disposed below and adjacent to and lattice matched with said upper first solar subcell, and having a second band gap smaller than said first band gap; wherein at least one of the solar subcells has a graded band gap throughout the thickness of at least a portion of the active layer.
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公开(公告)号:US20220246779A1
公开(公告)日:2022-08-04
申请号:US17467160
申请日:2021-09-03
IPC分类号: H01L31/0687 , H01L31/0693
摘要: A multijunction solar cell including an upper first solar subcell having a first band gap and positioned for receiving an incoming light beam; a second solar subcell disposed below and adjacent to and lattice matched with said upper first solar subcell, and having a second band gap smaller than said first band gap; wherein at least one of the solar subcells has a graded band gap throughout the thickness of at least a portion of the active layer.
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公开(公告)号:US20220238740A1
公开(公告)日:2022-07-28
申请号:US17574750
申请日:2022-01-13
IPC分类号: H01L31/0725 , H01L31/18 , H01L31/0735 , H01L31/065
摘要: A multijunction solar cell including an upper first solar subcell having a first band gap and positioned for receiving an incoming light beam; a second solar subcell disposed below and adjacent to and lattice matched with said upper first solar subcell, and having a second band gap smaller than said first band gap; wherein at least one of the solar subcells has a graded band gap throughout the thickness of at least a portion of the active layer of the one solar subcell.
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公开(公告)号:US11329181B1
公开(公告)日:2022-05-10
申请号:US17191355
申请日:2021-03-03
发明人: Daniel Derkacs , Zachary Bittner , John Hart , Clayton Cozzan
IPC分类号: H01L31/0687 , H01L31/054 , H01L31/0304
摘要: A multijunction solar cell including an upper first solar subcell having a first band gap and positioned for receiving an incoming light beam; a second solar subcell disposed directly below and adjacent to the upper first solar subcell, and having a second band gap smaller than said first band gap; wherein a light scattering layer is provided below the upper first solar subcell and adjacent to the upper first solar subcell for redirecting the incoming light to be scattered along longer path lengths into the second solar subcell.
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公开(公告)号:US20240247296A1
公开(公告)日:2024-07-25
申请号:US18378023
申请日:2023-10-09
发明人: John Hart , Daniel Derkacs , Zachary Bittner , Andrew Espenlaub
IPC分类号: C12P19/56
CPC分类号: C12P19/56
摘要: A multijunction solar cell including an upper first solar subcell having a first band gap and positioned for receiving an incoming light beam; and a second solar subcell disposed below and adjacent to and lattice matched with said upper first solar subcell, and having a second band gap smaller than said first band gap; wherein at least one of the solar subcells has a graded band gap throughout the thickness of at least a portion of its emitter layer and base layer.
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公开(公告)号:US11784274B2
公开(公告)日:2023-10-10
申请号:US17574750
申请日:2022-01-13
发明人: John Hart , Daniel Derkacs , Zachary Bittner , Andrew Espenlaub
IPC分类号: H01L31/0725 , H01L31/0735 , H01L31/065 , H01L31/18
CPC分类号: H01L31/0725 , H01L31/065 , H01L31/0735 , H01L31/184
摘要: A multijunction solar cell including an upper first solar subcell having a first band gap and positioned for receiving an incoming light beam; a second solar subcell disposed below and adjacent to and lattice matched with said upper first solar subcell, and having a second band gap smaller than said first band gap; wherein at least one of the solar subcells has a graded band gap throughout the thickness of at least a portion of the active layer of the one solar subcell.
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