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).

  • Publication number: 20240088319
    Abstract: 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: Application
    Filed: November 13, 2023
    Publication date: March 14, 2024
    Applicant: 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
  • Patent number: 11817516
    Abstract: 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: Grant
    Filed: October 25, 2019
    Date of Patent: November 14, 2023
    Assignee: 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
  • Patent number: 11450778
    Abstract: 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: Grant
    Filed: May 31, 2017
    Date of Patent: September 20, 2022
    Assignee: First Solar, Inc.
    Inventors: Kenneth Ring, William H. Huber, Hongying Peng, Markus Gloeckler, Gopal Mor, Feng Liao, Zhibo Zhao, Andrei Los
  • Publication number: 20220013674
    Abstract: 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: Application
    Filed: September 23, 2019
    Publication date: January 13, 2022
    Applicant: First Solar, Inc.
    Inventors: Paulina Bourgeois, Robert Clark-Phelps, Qi Fang, Jing Guo, Gopal Mor, Rui Shao
  • Publication number: 20200058818
    Abstract: 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: Application
    Filed: October 25, 2019
    Publication date: February 20, 2020
    Applicant: 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
  • Patent number: 10529883
    Abstract: 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: Grant
    Filed: November 3, 2014
    Date of Patent: January 7, 2020
    Assignee: 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
  • Publication number: 20190363201
    Abstract: 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: Application
    Filed: May 31, 2017
    Publication date: November 28, 2019
    Applicant: First Solar, Inc.
    Inventors: Kenneth Ring, William H. Huber, Hongying Peng, Markus Gloeckler, Gopal Mor, Feng Liao, Zhibo Zhao, Andrei Los
  • Patent number: 10461207
    Abstract: 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: Grant
    Filed: January 22, 2015
    Date of Patent: October 29, 2019
    Assignee: 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
  • Patent number: 9990436
    Abstract: 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: Grant
    Filed: October 12, 2015
    Date of Patent: June 5, 2018
    Assignee: EXCALIBUR IP, LLC
    Inventors: Supreeth Rao, Sudharsan Vasudevan, Gopal Mor, Utkarsh Shrivastava
  • Publication number: 20180083145
    Abstract: 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: Application
    Filed: September 19, 2017
    Publication date: March 22, 2018
    Applicant: First Solar, Inc.
    Inventors: Brian Cohen, David Hwang, Mark Lewis, Gopal Mor, Nathan Martin Schuh, Frank Xia, Yu Yang, Zhibo Zhao
  • Publication number: 20160126395
    Abstract: 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: Application
    Filed: November 3, 2014
    Publication date: May 5, 2016
    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
  • Publication number: 20160126396
    Abstract: 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: Application
    Filed: January 22, 2015
    Publication date: May 5, 2016
    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
  • Publication number: 20160034592
    Abstract: 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: Application
    Filed: October 12, 2015
    Publication date: February 4, 2016
    Inventors: Supreeth Rao, Sudharsan Vasudevan, Gopal Mor, Utkarsh Shrivastava
  • Patent number: 9158850
    Abstract: 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: Grant
    Filed: July 24, 2013
    Date of Patent: October 13, 2015
    Assignee: YAHOO! Inc.
    Inventors: Supreeth Rao, Sudharsan Vasudevan, Gopal Mor, Utkarsh Shrivastava
  • Publication number: 20150032740
    Abstract: 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: Application
    Filed: July 24, 2013
    Publication date: January 29, 2015
    Inventors: SUPREETH RAO, SUDHARSAN VASUDEVAN, GOPAL MOR, UTKARSH SHRIVASTAVA
  • Patent number: 7011737
    Abstract: 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: Grant
    Filed: April 2, 2004
    Date of Patent: March 14, 2006
    Assignee: The Penn State Research Foundation
    Inventors: Oomman K. Varghese, Gopal Mor, Maggie Paulose, Craig A. Grimes
  • Publication number: 20050224360
    Abstract: 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: Application
    Filed: April 2, 2004
    Publication date: October 13, 2005
    Inventors: Oomman Varghese, Gopal Mor, Maggie Paulose, Craig Grimes