Patents by Inventor Mohammad Ibrahim Dar

Mohammad Ibrahim Dar 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).

  • Inorganic hole conductor based perovskite photoelectric conversion device with high operational stability at long term
    Patent number: 11594694
    Abstract: The invention relates to an optoelectronic and/or photoelectrochemical device including a conductive support layer, n-type semiconductor, a sensitizer or light-absorber layer, a hole transporting layer, a spacer layer and a back contact, wherein the n-type semiconductor is in contact with the sensitizer or light-absorber layer, the sensitizer or light-absorber layer includes a perovskite or metal halide perovskite material, the hole transporting layer is in direct contact with the sensitizer or light-absorber layer and includes an inorganic hole transporting material or inorganic p-type semiconductor, the spacer layer is between the hole transporting layer and the back contact and includes a material being different from the inorganic hole transporting material and the material of the back contact.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: February 28, 2023
    Assignee: Ecole Polytechnique Federale de Lausanne (EPFL)
    Inventors: Neha Arora, Mohammad Ibrahim Dar, Shaik Mohammed Zakeeruddin, Michael Graetzel
  • INORGANIC HOLE CONDUCTOR BASED PEROVSKITE PHOTOELECTRIC CONVERSION DEVICE WITH HIGH OPERATIONAL STABILITY AT LONG TERM
    Publication number: 20200111981
    Abstract: The invention relates to an optoelectronic and/or photoelectrochemical device including a conductive support layer, n-type semiconductor, a sensitizer or light-absorber layer, a hole transporting layer, a spacer layer and a back contact, wherein the n-type semiconductor is in contact with the sensitizer or light-absorber layer, the sensitizer or light-absorber layer includes a perovskite or metal halide perovskite material, the hole transporting layer is in direct contact with the sensitizer or light-absorber layer and includes an inorganic hole transporting material or inorganic p-type semiconductor, the spacer layer is between the hole transporting layer and the back contact and includes a material being different from the inorganic hole transporting material and the material of the back contact.
    Type: Application
    Filed: May 3, 2018
    Publication date: April 9, 2020
    Inventors: Neha Arora, Mohammad Ibrahim Dar, Shaik Mohammed Zakeeruddin, Michael Graetzel