Patents by Inventor NOUREEN SIRAJ

NOUREEN SIRAJ 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).

  • Carbazole-based gumbos for highly efficient blue OLEDs
    Patent number: 10109802
    Abstract: Various examples are provided for carbazole-based GUMBOS (group of uniform materials based on organic salts), and its application in organic light emitting diodes (OLEDs). In one example, a composition includes a solid phase carbazole-based GUMBOS (group of uniform materials based on organic salts) comprising a counterion such as, e.g., trifluoromethanesulfonate ([Otf]), bis-(trifluoromethanesulfonyl)imide ([NTf2]), bis-(pentafluoroethylsulfonyl)imide ([BETI]), tetrafluoroborate (BF4), hexafluorophosphate (PF6), and/or thiocyanate (SCN). The carbazole-based GUMBOS can include carbazoleimidazole-based GUMBOS or 3,6-diBDC carbazolium-based GUMBOS. In another example, a method includes preparing a biphasic solution; separating a layer of DCM from the biphasic solution after stirring; washing the DCM with water to remove byproducts; and evaporating the DCM to form a solid phase carbazoleimidazole-based GUMBOS.
    Type: Grant
    Filed: January 5, 2016
    Date of Patent: October 23, 2018
    Assignee: BOARD OF SUPERVISORS OF LOUISIANA STATE UNIVERSITY AND AGRICULTURAL AND MECHANICAL COLLEGE
    Inventors: Noureen Siraj, Isiah Manuel Warner, Thenahandi Prasanthi Deepthika De Silva
  • CARBAZOLE-BASED GUMBOS FOR HIGHLY EFFICIENT BLUE OLEDS
    Publication number: 20180026201
    Abstract: Various examples are provided for carbazole-based GUMBOS (group of uniform materials based on organic salts), and its application in organic light emitting diodes (OLEDs). In one example, a composition includes a solid phase carbazole-based GUMBOS (group of uniform materials based on organic salts) comprising a counterion such as, e.g., trifluoromethanesulfonate ([Otf]), bis-(trifluoromethanesulfonyl)imide ([NTf2]), bis-(pentafluoroethylsulfonyl)imide ([BETI]), tetrafluoroborate (BF4), hexa-fluorophosphate (PF6), and/or thiocyanate (SCN). The carbazole-based GUMBOS can include carbazoleimidazole-based GUMBOS or 3,6-diBDC carbazolium-based GUMBOS. In another example, a method includes preparing a biphasic solution; separating a layer of DCM from the biphasic solution after stirring; washing the DCM with water to remove byproducts; and evaporating the DCM to form a solid phase carbazoleimidazole-based GUMBOS.
    Type: Application
    Filed: January 5, 2016
    Publication date: January 25, 2018
    Inventors: NOUREEN SIRAJ, ISIAH MANUEL WARNER, THENAHANDI PRASANTHI DEEPTHIKA DE SILVA