Patents Assigned to AMBERWAVE, INC.
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Patent number: 10971647Abstract: A method of forming a solar cell device that includes forming a porous layer in a monocrystalline donor substrate and forming an epitaxial semiconductor layer on the porous layer. A solar cell structure is formed on the epitaxial semiconductor layer. A carrier substrate is bonded to the solar cell structure through a bonding layer. The monocrystalline donor substrate is removed by cleaving the porous layer. A grid of metal contacts is formed on the epitaxial semiconductor layer. The exposed portions of the epitaxial semiconductor layer are removed. The exposed surface of the solar cell structure is textured. The textured surface may be passivated, in which the passivated surface can provide an anti-reflective coating.Type: GrantFiled: May 7, 2019Date of Patent: April 6, 2021Assignee: AmberWave, Inc.Inventors: Anthony Lochtefeld, Allen Barnett
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Publication number: 20180226533Abstract: A device, system, and method for solar cell construction and bonding/layer transfer are disclosed herein. An exemplary structure of solar cell construction involves providing a monocrystalline donor layer. A solder bonding layer bonds the donor layer to a carrier substrate. A porous layer may be used to separate the donor layer.Type: ApplicationFiled: February 8, 2017Publication date: August 9, 2018Applicant: Amberwave Inc.Inventors: Anthony Lochtefeld, Chris Leitz, Mark Carroll
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Patent number: 9812601Abstract: A device, system, and method for a multi junction solar cell are described herein. An exemplary multi-solar cell structure can have a substrate having a first surface having a (111) crystalline etched surface. A dielectric layer can be deposited on the first surface of the substrate. A graded buffer layer can be grown on a second surface of the substrate with the second surface having a (100) crystalline surface. A first solar subcell within or on top of the graded buffer layer and a second solar subcell grown on top of the first solar subcell.Type: GrantFiled: March 17, 2014Date of Patent: November 7, 2017Assignee: Amberwave Inc.Inventor: Anthony Lochtefeld
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Patent number: 9590130Abstract: A device, system, and method for solar cell construction and bonding/layer transfer are disclosed herein. An exemplary structure of solar cell construction involves providing a monocrystalline donor layer. A solder bonding layer bonds the donor layer to a carrier substrate. A porous layer may be used to separate the donor layer.Type: GrantFiled: April 30, 2012Date of Patent: March 7, 2017Assignee: AMBERWAVE INC.Inventors: Anthony Lochtefeld, Chris Leitz, Mark Carroll
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Publication number: 20160049535Abstract: A device, system, and method for solar cell construction and layer transfer are disclosed herein. An exemplary method of solar cell construction involves providing a silicon donor substrate. A porous layer is formed on the donor substrate. A first portion of a solar cell is constructed on the porous layer of the donor substrate. The solar cell and donor substrate are bonded to a flexible substrate. The flexible substrate and the first portion of a solar cell are then separated from the donor substrate at the porous layer. A second portion of a solar cell may then be constructed on the first portion of a solar cell providing a single completed solar cell.Type: ApplicationFiled: July 17, 2015Publication date: February 18, 2016Applicant: AMBERWAVE, INC.Inventors: Anthony Lochtefeld, Chris Leitz
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Patent number: 9178105Abstract: A device, system, and method for solar cell construction and layer transfer are disclosed herein. An exemplary method of solar cell construction involves providing a silicon donor substrate. A porous layer is formed on the donor substrate. A first portion of a solar cell is constructed on the porous layer of the donor substrate. The solar cell and donor substrate are bonded to a flexible substrate. The flexible substrate and the first portion of a solar cell are then separated from the donor substrate at the porous layer. A second portion of a solar cell may then be constructed on the first portion of a solar cell providing a single completed solar cell.Type: GrantFiled: September 21, 2011Date of Patent: November 3, 2015Assignee: Amberwave Inc.Inventors: Anthony Lochtefeld, Chris Leitz
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Publication number: 20140261652Abstract: A device, system, and method for a multi junction solar cell are described herein. An exemplary multi-solar cell structure can have a substrate having a first surface having a (111) crystalline etched surface. A dielectric layer can be deposited on the first surface of the substrate. A graded buffer layer can be grown on a second surface of the substrate with the second surface having a (100) crystalline surface. A first solar subcell within or on top of the graded buffer layer and a second solar subcell grown on top of the first solar subcell.Type: ApplicationFiled: March 17, 2014Publication date: September 18, 2014Applicant: Amberwave Inc.Inventor: Anthony Lochtefeld
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Publication number: 20130056053Abstract: A device, system, and method for a multi-junction solar cell is described herein. An exemplary silicon germanium solar cell structure has a substrate with a graded buffer layer grown on the substrate. A base layer and emitter layer for a first solar cell are grown in or on the graded buffer layer. A first junction is provided between the emitter layer and the base layer. A second solar cell is grown on top of the first solar cell.Type: ApplicationFiled: September 4, 2012Publication date: March 7, 2013Applicant: AMBERWAVE INC.Inventors: Anthony Lochtefeld, Andrew Gerger
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Publication number: 20120273043Abstract: A device, system, and method for solar cell construction and bonding/layer transfer are disclosed herein. An exemplary structure of solar cell construction involves providing a monocrystalline donor layer. A solder bonding layer bonds the donor layer to a carrier substrate. A porous layer may be used to separate the donor layer.Type: ApplicationFiled: April 30, 2012Publication date: November 1, 2012Applicant: AMBERWAVE INC.Inventors: Anthony Lochtefeld, Chris Leitz, Mark Carroll
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Publication number: 20120067423Abstract: A device, system, and method for solar cell construction and layer transfer are disclosed herein. An exemplary method of solar cell construction involves providing a silicon donor substrate. A porous layer is formed on the donor substrate. A first portion of a solar cell is constructed on the porous layer of the donor substrate. The solar cell and donor substrate are bonded to a flexible substrate. The flexible substrate and the first portion of a solar cell are then separated from the donor substrate at the porous layer. A second portion of a solar cell may then be constructed on the first portion of a solar cell providing a single completed solar cell.Type: ApplicationFiled: September 21, 2011Publication date: March 22, 2012Applicant: AMBERWAVE, INC.Inventors: Anthony Lochtefeld, Chris Leitz
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Publication number: 20110272011Abstract: A device, system, and method for a thin Si solar cell with epitaxial lateral overgrowth (ELO) structure described in may demonstrate higher open circuit voltage are disclosed herein. An exemplary thin silicon solar cell structure has a p+ silicon substrate. A dielectric layer is disposed over the p+ silicon substrate. One or more trenches are defined within the dielectric layer. A thin n type silicon layer is grown on the p+ silicon substrate within the trench by epitaxial lateral overgrowth wherein a junction area of the solar cell is minimized.Type: ApplicationFiled: June 7, 2010Publication date: November 10, 2011Applicant: AMBERWAVE, INC.Inventors: Anthony Lochtefeld, Allen Barnett
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Publication number: 20110174376Abstract: A device, system, and method for solar cell construction and bonding/layer transfer are disclosed herein. An exemplary structure of solar cell construction involves providing a monocrystalline donor absorber layer. A conductive bonding layer bonds the absorber layer to a carrier substrate. A porous layer or ion implant may be used to form the donor absorber layer.Type: ApplicationFiled: January 19, 2011Publication date: July 21, 2011Applicant: AMBERWAVE, INC.Inventors: Anthony Lochtefeld, Jizhong Li, Allen Barnett, Donald Stryker
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Publication number: 20110120538Abstract: A device, system, and method for a silicon germanium solar cell structure. An exemplary silicon germanium solar cell structure has a substrate with a graded buffer layer grown on the substrate. An absorber layer is grown on the graded buffer layer and an emitter layer is grown on the absorber layer. A first junction is provided between the emitter layer and the absorber layer. A second junction may be provided between the substrate and the graded buffer layer.Type: ApplicationFiled: October 25, 2010Publication date: May 26, 2011Applicant: AMBERWAVE, INC.Inventors: Anthony Lochtefeld, Allen Barnett