Patents by Inventor Vivek V. Dhas
Vivek V. Dhas has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 10189998Abstract: Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes. The active layer may have perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.Type: GrantFiled: February 27, 2017Date of Patent: January 29, 2019Assignee: Hunt Energy Enterprises, LLCInventors: Michael D. Irwin, Vivek V. Dhas, Kamil Mielczarek
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Publication number: 20180299764Abstract: A method for preparing photoactive perovskite materials. The method comprises the steps of: introducing a lead halide and a first solvent to a first vessel and contacting the lead halide with the first solvent to dissolve the lead halide to form a lead halide solution, introducing a Group 1 metal halide a second solvent into a second vessel and contacting the Group 1 metal halide with the second solvent to dissolve the Group 1 metal halide to form a Group 1 metal halide solution, and contacting the lead halide solution with the Group 1 metal halide solution to form a thin-film precursor ink. The method further comprises depositing the thin-film precursor ink onto a substrate, drying the thin-film precursor ink to form a thin film, annealing the thin film; and rinsing the thin film with a salt solution.Type: ApplicationFiled: January 29, 2018Publication date: October 18, 2018Inventors: Michael D. Irwin, Kamil Mielczarek, Vivek V. Dhas
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Publication number: 20180287082Abstract: A method for preparing photoactive perovskite materials. The method comprises the step of preparing a lead halide precursor ink. Preparing a lead halide precursor ink comprises the steps of: introducing a lead halide into a vessel, introducing a first solvent to the vessel, and contacting the lead halide with the first solvent to dissolve the lead halide. The method further comprises depositing the lead halide precursor ink onto a substrate, drying the lead halide precursor ink to form a thin film, annealing the thin film, and rinsing the thin film with a second solvent and a salt.Type: ApplicationFiled: June 4, 2018Publication date: October 4, 2018Inventors: Michael D. Irwin, Jerred A. Chute, Vivek V. Dhas
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Publication number: 20180248134Abstract: Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes, the active layer having perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.Type: ApplicationFiled: May 1, 2018Publication date: August 30, 2018Inventors: Michael D. Irwin, Vivek V. Dhas
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Publication number: 20180248132Abstract: Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes, the active layer having perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.Type: ApplicationFiled: April 30, 2018Publication date: August 30, 2018Inventors: Michael D. Irwin, Vivek V. Dhas
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Publication number: 20180248133Abstract: Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes, the active layer having perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.Type: ApplicationFiled: April 30, 2018Publication date: August 30, 2018Inventors: Michael D. Irwin, Vivek V. Dhas
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Patent number: 9991457Abstract: A method for preparing photoactive perovskite materials. The method comprises the step of preparing a lead halide precursor ink. Preparing a lead halide precursor ink comprises the steps of: introducing a lead halide into a vessel, introducing a first solvent to the vessel, and contacting the lead halide with the first solvent to dissolve the lead halide. The method further comprises depositing the lead halide precursor ink onto a substrate, drying the lead halide precursor ink to form a thin film, annealing the thin film, and rinsing the thin film with a second solvent and a salt.Type: GrantFiled: March 11, 2016Date of Patent: June 5, 2018Assignee: HEE Solar, L.L.C.Inventors: Michael D. Irwin, Jerred A. Chute, Vivek V. Dhas
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Patent number: 9941480Abstract: A method for processing a perovskite photoactive layer. The method comprises depositing a lead salt precursor onto a substrate to form a lead salt thin film, depositing a second salt precursor onto the lead salt thin film, annealing the substrate to form a perovskite material.Type: GrantFiled: June 28, 2016Date of Patent: April 10, 2018Assignee: HEE Solar, L.L.C.Inventors: Michael D. Irwin, Jerred A. Chute, Vivek V. Dhas
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Patent number: 9884966Abstract: Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes. The active layer may have perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.Type: GrantFiled: September 25, 2015Date of Patent: February 6, 2018Assignee: Hee Solar, L.L.C.Inventors: Michael D. Irwin, Jerred A. Chute, Vivek V. Dhas
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Publication number: 20180030279Abstract: Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes. The active layer may have perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.Type: ApplicationFiled: September 22, 2017Publication date: February 1, 2018Inventors: Michael D. Irwin, Jerred A. Chute, Vivek V. Dhas, Kamil Mielczarek
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Patent number: 9880458Abstract: A method for preparing photoactive perovskite materials. The method comprises the steps of: introducing a lead halide and a first solvent to a first vessel and contacting the lead halide with the first solvent to dissolve the lead halide to form a lead halide solution, introducing a Group 1 metal halide a second solvent into a second vessel and contacting the Group 1 metal halide with the second solvent to dissolve the Group 1 metal halide to form a Group 1 metal halide solution, and contacting the lead halide solution with the Group 1 metal halide solution to form a thin-film precursor ink. The method further comprises depositing the thin-film precursor ink onto a substrate, drying the thin-film precursor ink to form a thin film, annealing the thin film; and rinsing the thin film with a salt solution.Type: GrantFiled: April 17, 2017Date of Patent: January 30, 2018Assignee: HEE Solar, L.L.C.Inventors: Michael D. Irwin, Kamil Mielczarek, Vivek V. Dhas
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Publication number: 20170178822Abstract: Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes. The active layer may have perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.Type: ApplicationFiled: February 27, 2017Publication date: June 22, 2017Inventors: Michael D. Irwin, Vivek V. Dhas, Kamil Mielczarek
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Patent number: 9617431Abstract: Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes. The active layer may have perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.Type: GrantFiled: November 23, 2015Date of Patent: April 11, 2017Assignee: Hunt Energy Enterprises, L.L.C.Inventors: Michael D. Irwin, Jerred A. Chute, Vivek V. Dhas
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Patent number: 9520512Abstract: Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes. The active layer may have perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The active layer may include a titanate. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.Type: GrantFiled: May 13, 2015Date of Patent: December 13, 2016Assignee: Hunt Energy Enterprises, L.L.C.Inventors: Michael D. Irwin, Jerred A. Chute, Vivek V. Dhas
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Publication number: 20160308154Abstract: A method for processing a perovskite photoactive layer. The method comprises depositing a lead salt precursor onto a substrate to form a lead salt thin film, depositing a second salt precursor onto the lead salt thin film, annealing the substrate to form a perovskite material.Type: ApplicationFiled: June 28, 2016Publication date: October 20, 2016Inventors: Michael D. Irwin, Jerred A. Chute, Vivek V. Dhas
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Publication number: 20160268529Abstract: A method for preparing photoactive perovskite materials. The method comprises the step of preparing a lead halide precursor ink. Preparing a lead halide precursor ink comprises the steps of: introducing a lead halide into a vessel, introducing a first solvent to the vessel, and contacting the lead halide with the first solvent to dissolve the lead halide. The method further comprises depositing the lead halide precursor ink onto a substrate, drying the lead halide precursor ink to form a thin film, annealing the thin film, and rinsing the thin film with a second solvent and a salt.Type: ApplicationFiled: March 11, 2016Publication date: September 15, 2016Inventors: Michael D. Irwin, Jerred A. Chute, Vivek V. Dhas
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Patent number: 9425396Abstract: A method for processing a perovskite photoactive layer. The method comprises depositing a lead salt precursor onto a substrate to form a lead salt thin film, depositing a second salt precursor onto the lead salt thin film, annealing the substrate to form a perovskite material.Type: GrantFiled: July 10, 2015Date of Patent: August 23, 2016Assignee: Hunt Energy Enterprises L.L.C.Inventors: Michael D. Irwin, Jerred A. Chute, Vivek V. Dhas
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Patent number: 9416279Abstract: Photovoltaic devices such as solar cells, hybrid solar cell-batteries, and other such devices may include an active layer disposed between two electrodes. The active layer may have perovskite material and other material such as mesoporous material, interfacial layers, thin-coat interfacial layers, and combinations thereof. The perovskite material may be photoactive. The perovskite material may be disposed between two or more other materials in the photovoltaic device. Inclusion of these materials in various arrangements within an active layer of a photovoltaic device may improve device performance. Other materials may be included to further improve device performance, such as, for example: additional perovskites, and additional interfacial layers.Type: GrantFiled: May 13, 2015Date of Patent: August 16, 2016Assignee: Hunt Energy Enterprises, L.L.C.Inventors: Michael D. Irwin, Jerred A. Chute, Vivek V. Dhas
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Patent number: 9305715Abstract: A method for preparing photoactive perovskite materials. The method comprises the step of preparing a lead halide precursor ink. Preparing a lead halide precursor ink comprises the steps of: introducing a lead halide into a vessel, introducing a first solvent to the vessel, and contacting the lead halide with the first solvent to dissolve the lead halide. The method further comprises depositing the lead halide precursor ink onto a substrate, drying the lead halide precursor ink to form a thin film, annealing the thin film, and rinsing the thin film with a second solvent and a salt.Type: GrantFiled: May 13, 2015Date of Patent: April 5, 2016Assignee: Hunt Energy Enterprises LLCInventors: Michael D. Irwin, Jerred A. Chute, Vivek V. Dhas
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Patent number: 9290392Abstract: The present application discloses a shape preserving chemical transformation of ZnO mesostructures into anatase TiO2 mesostructures using controlled low temperature TiCl4 treatment for optoelectronic applications.Type: GrantFiled: June 1, 2012Date of Patent: March 22, 2016Assignee: Council of Scientific & Industrial ResearchInventors: Subas K. Muduli, Vivek V. Dhas, Onkar S. Game, Ashish P. Yengantiwar, Satishchandra B. Ogale