Patents by Inventor Gopal Mor
Gopal Mor 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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Publication number: 20240088319Abstract: A photovoltaic device includes a substrate structure and at least one Se-containing layer, such as a CdSeTe layer. A process for manufacturing the photovoltaic device includes forming the CdSeTe layer over a substrate by at least one of sputtering, evaporation deposition, CVD, chemical bath deposition process, and vapor transport deposition process. The process can also include controlling a thickness range of the Se-containing layer.Type: ApplicationFiled: November 13, 2023Publication date: March 14, 2024Applicant: First Solar, Inc.Inventors: Dan Damjanovic, Markus Gloeckler, Feng Liao, Andrei Los, Dan Mao, Benjamin Milliron, Gopal Mor, Rick Powell, Kenneth Ring, Aaron Roggelin, Jigish Trivedi, Zhibo Zhao
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Patent number: 11817516Abstract: A photovoltaic device includes a substrate structure and at least one Se-containing layer, such as a CdSeTe layer. A process for manufacturing the photovoltaic device includes forming the CdSeTe layer over a substrate by at least one of sputtering, evaporation deposition, CVD, chemical bath deposition process, and vapor transport deposition process. The process can also include controlling a thickness range of the Se-containing layer.Type: GrantFiled: October 25, 2019Date of Patent: November 14, 2023Assignee: First Solar, Inc.Inventors: Dan Damjanovic, Markus Gloeckler, Feng Liao, Andrei Los, Dan Mao, Benjamin Milliron, Gopal Mor, Rick Powell, Kenneth Ring, Aaron Roggelin, Jigish Trivedi, Zhibo Zhao
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Patent number: 11450778Abstract: A doped photovoltaic device is presented. The photovoltaic device includes a semiconductor absorber layer or stack disposed between a front contact and a back contact. The absorber layer comprises cadmium, selenium, and tellurium doped with Ag, and optionally with Cu. The Ag dopant may be added to the absorber in amounts ranging from 5×1015/cm3 to 2.5×1017/cm3 via any of several methods of application before, during, or after deposition of the absorber layer. The photovoltaic device has improved Fill Factor and PMAX at higher Pr(=Isc*Voc product) values, e.g. about 160 W, which results in improved conversion efficiency compared to a device not doped with Ag. Improved PT may result from increased Isc, increased Voc, or both.Type: GrantFiled: May 31, 2017Date of Patent: September 20, 2022Assignee: First Solar, Inc.Inventors: Kenneth Ring, William H. Huber, Hongying Peng, Markus Gloeckler, Gopal Mor, Feng Liao, Zhibo Zhao, Andrei Los
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Publication number: 20220013674Abstract: According to the embodiments provided herein, a method for sputtering a TCO material onto a substrate includes process conditions that produce a textured topography at the interfaces of various layers. The textured topography can include an average roughness from about 5 to about 40 nm. The process conditions can include providing oxygen in the sputtering environment at a flow rate of from 0 to about 30 sccm; or heating the substrate to at least 200; or increasing the magnetic field strength to above 40 mT. The textured topography creates interfacial transition areas which have hybrid physical properties compared to their constituent materials.Type: ApplicationFiled: September 23, 2019Publication date: January 13, 2022Applicant: First Solar, Inc.Inventors: Paulina Bourgeois, Robert Clark-Phelps, Qi Fang, Jing Guo, Gopal Mor, Rui Shao
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Publication number: 20200058818Abstract: A photovoltaic device includes a substrate structure and at least one Se-containing layer, such as a CdSeTe layer. A process for manufacturing the photovoltaic device includes forming the CdSeTe layer over a substrate by at least one of sputtering, evaporation deposition, CVD, chemical bath deposition process, and vapor transport deposition process. The process can also include controlling a thickness range of the Se-containing layer.Type: ApplicationFiled: October 25, 2019Publication date: February 20, 2020Applicant: First Solar, Inc.Inventors: Dan Damjanovic, Markus Gloeckler, Feng Liao, Andrei Los, Dan Mao, Benjamin Milliron, Gopal Mor, Rick Powell, Kenneth Ring, Aaron Roggelin, Jigish Trivedi, Zhibo Zhao
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Patent number: 10529883Abstract: A photovoltaic device includes a substrate structure and at least one Se-containing layer, such as a CdSeTe layer. A process for manufacturing the photovoltaic device includes forming the CdSeTe layer over a substrate by at least one of sputtering, evaporation deposition, CVD, chemical bath deposition process, and vapor transport deposition process. The process can also include controlling a thickness range of the Se-containing layer.Type: GrantFiled: November 3, 2014Date of Patent: January 7, 2020Assignee: First Solar, Inc.Inventors: Dan Damjanovic, Markus Gloeckler, Feng Liao, Andrei Los, Dan Mao, Benjamin Milliron, Gopal Mor, Rick Powell, Kenneth Ring, Aaron Roggelin, Jigish Trivedi, Zhibo Zhao
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Publication number: 20190363201Abstract: A doped photovoltaic device is presented. The photovoltaic device includes a semiconductor absorber layer or stack disposed between a front contact and a back contact. The absorber layer comprises cadmium, selenium, and tellurium doped with Ag, and optionally with Cu. The Ag dopant may be added to the absorber in amounts ranging from 5×1015/cm3 to 2.5×1017/cm3 via any of several methods of application before, during, or after deposition of the absorber layer. The photovoltaic device has improved Fill Factor and PMAX at higher Pr (=Isc*Voc product) values, e.g. about 160 W, which results in improved conversion efficiency compared to a device not doped with Ag. Improved PT may result from increased Isc, increased Voc, or both.Type: ApplicationFiled: May 31, 2017Publication date: November 28, 2019Applicant: First Solar, Inc.Inventors: Kenneth Ring, William H. Huber, Hongying Peng, Markus Gloeckler, Gopal Mor, Feng Liao, Zhibo Zhao, Andrei Los
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Patent number: 10461207Abstract: A photovoltaic device includes a substrate structure and at least one Se-containing layer, such as a CdSeTe layer. A process for manufacturing the photovoltaic device includes forming the CdSeTe layer over a substrate by at least one of sputtering, evaporation deposition, CVD, chemical bath deposition process, and vapor transport deposition process. The process can also include controlling a thickness range of the Se-containing layer.Type: GrantFiled: January 22, 2015Date of Patent: October 29, 2019Assignee: First Solar, Inc.Inventors: Dan Damjanovic, Markus Gloeckler, Feng Liao, Andrei Los, Dan Mao, Benjamin Milliron, Gopal Mor, Rick Powell, Kenneth Ring, Aaron Roggelin, Jigish Trivedi, Zhibo Zhao
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Patent number: 9990436Abstract: A system and method for generating a personalized trends module includes steps of: for a given user, producing a social timeline by logging content posted on the given user's accounts on social media sites; analyzing the social timeline for recently posted content to derive an interim summary of first trending topics for the given user; receiving from a content personalization platform an in-stream feed of second trending topics based on the user's recent on-line activity including page views, queries, and clicks; augmenting the social timeline with the second trending topics from the in-stream feed to produce an interim list of third trending topics; ranking the third trending topics by source category using a frequency index; selecting the highest ranking third trending topics from each source category; and presenting a personalized trends module with positions allocated to the highest ranking third trending topics.Type: GrantFiled: October 12, 2015Date of Patent: June 5, 2018Assignee: EXCALIBUR IP, LLCInventors: Supreeth Rao, Sudharsan Vasudevan, Gopal Mor, Utkarsh Shrivastava
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Publication number: 20180083145Abstract: Methods of curing anti-reflective coatings, and photovoltaic modules produced using the methods, are described. The methods can include liquid metal curing, plasma curing, air knife curing, and flame curing.Type: ApplicationFiled: September 19, 2017Publication date: March 22, 2018Applicant: First Solar, Inc.Inventors: Brian Cohen, David Hwang, Mark Lewis, Gopal Mor, Nathan Martin Schuh, Frank Xia, Yu Yang, Zhibo Zhao
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Publication number: 20160126395Abstract: A photovoltaic device includes a substrate structure and at least one Se-containing layer, such as a CdSeTe layer. A process for manufacturing the photovoltaic device includes forming the CdSeTe layer over a substrate by at least one of sputtering, evaporation deposition, CVD, chemical bath deposition process, and vapor transport deposition process. The process can also include controlling a thickness range of the Se-containing layer.Type: ApplicationFiled: November 3, 2014Publication date: May 5, 2016Inventors: Dan Damjanovic, Markus Gloeckler, Feng Liao, Andrei Los, Dan Mao, Benjamin Milliron, Gopal Mor, Rick Powell, Kenneth Ring, Aaron Roggelin, Jigish Trivedi, Zhibo Zhao
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Publication number: 20160126396Abstract: A photovoltaic device includes a substrate structure and at least one Se-containing layer, such as a CdSeTe layer. A process for manufacturing the photovoltaic device includes forming the CdSeTe layer over a substrate by at least one of sputtering, evaporation deposition, CVD, chemical bath deposition process, and vapor transport deposition process. The process can also include controlling a thickness range of the Se-containing layer.Type: ApplicationFiled: January 22, 2015Publication date: May 5, 2016Inventors: Dan Damjanovic, Markus Gloeckler, Feng Liao, Andrei Los, Dan Mao, Benjamin Milliron, Gopal Mor, Rick Powell, Kenneth Ring, Aaron Roggelin, Jigish Trivedi, Zhibo Zhao
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Publication number: 20160034592Abstract: A system and method for generating a personalized trends module includes steps of: for a given user, producing a social timeline by logging content posted on the given user's accounts on social media sites; analyzing the social timeline for recently posted content to derive an interim summary of first trending topics for the given user; receiving from a content personalization platform an in-stream feed of second trending topics based on the user's recent on-line activity including page views, queries, and clicks; augmenting the social timeline with the second trending topics from the in-stream feed to produce an interim list of third trending topics; ranking the third trending topics by source category using a frequency index; selecting the highest ranking third trending topics from each source category; and presenting a personalized trends module with positions allocated to the highest ranking third trending topics.Type: ApplicationFiled: October 12, 2015Publication date: February 4, 2016Inventors: Supreeth Rao, Sudharsan Vasudevan, Gopal Mor, Utkarsh Shrivastava
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Patent number: 9158850Abstract: A system and method for generating a personalized trends module includes steps of: for a given user, producing a social timeline by logging content posted on the given user's accounts on social media sites; analyzing the social timeline for recently posted content to derive an interim summary of first trending topics for the given user; receiving from a content personalization platform an in-stream feed of second trending topics based on the user's recent on-line activity including page views, queries, and clicks; augmenting the social timeline with the second trending topics from the in-stream feed to produce an interim list of third trending topics; ranking the third trending topics by source category using a frequency index; selecting the highest ranking third trending topics from each source category; and presenting a personalized trends module with positions allocated to the highest ranking third trending topics.Type: GrantFiled: July 24, 2013Date of Patent: October 13, 2015Assignee: YAHOO! Inc.Inventors: Supreeth Rao, Sudharsan Vasudevan, Gopal Mor, Utkarsh Shrivastava
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Publication number: 20150032740Abstract: A system and method for generating a personalized trends module includes steps of: for a given user, producing a social timeline by logging content posted on the given user's accounts on social media sites; analyzing the social timeline for recently posted content to derive an interim summary of first trending topics for the given user; receiving from a content personalization platform an in-stream feed of second trending topics based on the user's recent on-line activity including page views, queries, and clicks; augmenting the social timeline with the second trending topics from the in-stream feed to produce an interim list of third trending topics; ranking the third trending topics by source category using a frequency index; selecting the highest ranking third trending topics from each source category; and presenting a personalized trends module with positions allocated to the highest ranking third trending topics.Type: ApplicationFiled: July 24, 2013Publication date: January 29, 2015Inventors: SUPREETH RAO, SUDHARSAN VASUDEVAN, GOPAL MOR, UTKARSH SHRIVASTAVA
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Patent number: 7011737Abstract: An electrical resistive device, including: an array of titania nanotubes open at an outwardly-directed end formed by anodizing at least a portion of a titanium layer; a plurality of palladium (or other noble metal) clusters having been deposited atop the nanotube array; and the nanotube array mechanically supported by an integral support member. The array of titania nanotubes may include a dopant. An exposure of titania nanotube array to radiant energy emitted within a range of frequencies from visible to ultraviolet, in the presence of oxygen, removes a contaminant, if present. The titanium layer may be deposited atop the integral support; or the unique doped titanium layer can be produced, prior to the anodizing thereof, by depositing titanium along with dopant atop the integral support member by a co-deposition process. Also, supported: method(s) of producing the electrical resistive devices.Type: GrantFiled: April 2, 2004Date of Patent: March 14, 2006Assignee: The Penn State Research FoundationInventors: Oomman K. Varghese, Gopal Mor, Maggie Paulose, Craig A. Grimes
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Publication number: 20050224360Abstract: An electrical resistive device for sensing hydrogen gas, including: an array of titania nanotubes open at an outwardly-directed end formed by anodizing at least a portion of a titanium layer; a plurality of palladium (or other noble metal) clusters having been deposited atop the nanotube array; and the nanotube array mechanically supported by an integral support member. The array of titania nanotubes may include a dopant in an amount less than 1% by mass. An exposure of the titania nanotube array to radiant energy emitted within a range of frequencies from visible to ultraviolet, in the presence of oxygen, removes at least a portion of a contaminant, if present on the titania nanotubes. The titanium layer may be deposited atop the integral support; or the unique doped titanium layer can be produced, prior to the anodizing thereof, by depositing titanium along with dopant atop the integral support member by a co-deposition process. The titanium layer may be a titanium foil or doped titanium foil.Type: ApplicationFiled: April 2, 2004Publication date: October 13, 2005Inventors: Oomman Varghese, Gopal Mor, Maggie Paulose, Craig Grimes