Patents by Inventor Syed Ghufran Hashmi

Syed Ghufran Hashmi 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).

  • Double sided solar cell assembly
    Patent number: 11799041
    Abstract: The present invention relates to a double sided solar cell assembly, including at least one carbon-based perovskite solar cell unit, which has been included in a sandwich structure together with a second solar cell unit, which is a dye-sensitized photoelectrode.
    Type: Grant
    Filed: December 19, 2019
    Date of Patent: October 24, 2023
    Assignee: Aalto University Foundation sr
    Inventor: Syed Ghufran Hashmi
  • A double sided solar cell assembly
    Publication number: 20220069146
    Abstract: The present invention relates to a double sided solar cell assembly, including at least one carbon-based perovskite solar cell unit, which has been included in a sandwich structure together with a second solar cell unit, which is a dye-sensitized photoelectrode.
    Type: Application
    Filed: December 19, 2019
    Publication date: March 3, 2022
    Inventor: Syed Ghufran Hashmi
  • Method for inkjet printing an organic-inorganic perovskite
    Patent number: 11177440
    Abstract: The present invention provides a method for depositing an organic-inorganic perovskite, the method comprising the step of depositing a perovskite precursor solution comprising one or more organic cation, wherein said precursor solution preferably deposited by inkjet printing. The method is particularly useful in the manufacture of perovskite solar cells. For depositing the perovskite, a perovskite precursor solution or ink is preferably used, which comprises an organic cation carrying an anchoring group, such as 5-ammonium valeric acid. Surprisingly, the presence of the latter compound renders the precursor solutions stable and suitable for inkjet printing.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: November 16, 2021
    Assignees: AALTO UNIVERSITY FOUNDATION, ECOLE POLYTECHNIQUE FEDERALE DE LAUSANNE (EPFL), SOLARONIX S.A
    Inventors: Syed Ghufran Hashmi, Merve Ozkan, David Martineau, Xiong Li, Shaik Mohammed Zakeeruddin, Michael Graetzel
  • Method for Inkjet Printing an Organic-Inorganic Perovskite
    Publication number: 20200028081
    Abstract: The present invention provides a method for depositing an organic-inorganic perovskite, the method comprising the step of depositing a perovskite precursor solution comprising one or more organic cation, wherein said precursor solution preferably deposited by inkjet printing. The method is particularly useful in the manufacture of perovskite solar cells. For depositing the perovskite, a perovskite precursor solution or ink is preferably used, which comprises an organic cation carrying an anchoring group, such as 5-ammonium valeric acid. Surprisingly, the presence of the latter compound renders the precursor solutions stable and suitable for inkjet printing.
    Type: Application
    Filed: August 2, 2017
    Publication date: January 23, 2020
    Inventors: Syed Ghufran Hashmi, Merve Ozkan, David Martineau, Xiong Li, Shaik Mohammed Zakeeruddin, Michael Graetzel