Patents by Inventor Md. Akhtaruzzaman

Md. Akhtaruzzaman 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).

  • Di-thiazolyl-benzodiazole based sensitizers and their use in photovoltaic cell
    Patent number: 8575355
    Abstract: Described herein are D-?-A type sensitizers of the formula (I) or (II) having a novel central ?-conjugated unit di-thiazolyl-benzodiazole and dye-sensitized electrodes including a substrate having an electrically conductive surface, an oxide semiconductor film formed on the conductive surface, and the above sensitizer of formula (I) or (II), as specified above, supported on the film. A solar cell includes the above electrode, a counter electrode, and an electrolyte deposited there between. The sensitizers of formula (I) and (II) efficiently sensitize the semiconductor materials and show a high solar to electricity conversion efficiency.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: November 5, 2013
    Assignee: King Abdulaziz City for Science and Technology
    Inventors: Mohammad Rezaul Karim, Md. Akhtaruzzaman, Ashraful Islam, Abdulrahman M. Al-Ahmari
  • DI-THIAZOLYL-BENZODIAZOLE BASED SENSITIZERS AND THEIR USE IN PHOTOVOLTAIC CELL
    Publication number: 20130160854
    Abstract: Described herein are D-?-A type sensitizers of the formula (I) or (II) having a novel central ?-conjugated unit di-thiazolyl-benzodiazole and dye-sensitized electrodes including a substrate having an electrically conductive surface, an oxide semiconductor film formed on the conductive surface, and the above sensitizer of formula (I) or (II), as specified above, supported on the film. A solar cell includes the above electrode, a counter electrode, and an electrolyte deposited there between. The sensitizers of formula (I) and (II) efficiently sensitize the semiconductor materials and show a high solar to electricity conversion efficiency.
    Type: Application
    Filed: December 23, 2011
    Publication date: June 27, 2013
    Applicant: KING ABDULAZIZ CITY FOR SCIENCE AND TECHNOLOGY
    Inventors: Mohammad Rezaul Karim, Md. Akhtaruzzaman, Ashraful Islam, Abdulrahman M. Al-Ahmari