Patents by Inventor Lays DOS-SANTOS

Lays DOS-SANTOS 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).

  • Thermally activated delayed fluorescence molecules, materials comprising said molecules, and devices comprising said materials
    Patent number: 11725013
    Abstract: A thermally activated delayed fluorescence (TADF) molecule comprising: a central electron donor moiety, wherein the central electron donor moiety is formed of a conjugated multi-ring system comprising three nitrogen atoms; and three electron acceptor moieties, each bonded to the central electron donor moiety via one of the three nitrogen atoms, wherein at least one of the three electron acceptor moieties is twisted relative to the central electron donor moiety defining a torsion angle in a range 40° to <90° whereby the TADF molecule has a photoluminescence quantum yield of >60% and a rate of reverse intersystem crossing from a lowest excited triplet state to a lowest excited singlet state of at least 1×10 s?1.
    Type: Grant
    Filed: October 17, 2018
    Date of Patent: August 15, 2023
    Assignee: The University of Durham
    Inventors: Andrew P. Monkman, Jonathan S. Ward, Martin R. Bryce, Daniel G. Congrave, Lays Dos-Santos
  • THERMALLY ACTIVATED DELAYED FLUORESCENCE MOLECULES, MATERIALS COMPRISING SAID MOLECULES, AND DEVICES COMPRISING SAID MATERIALS
    Publication number: 20200331924
    Abstract: A thermally activated delayed fluorescence (TADF) molecule comprising: a central electron donor moiety, wherein the central electron donor moiety is formed of a conjugated multi-ring system comprising three nitrogen atoms; and three electron acceptor moieties, each bonded to the central electron donor moiety via one of the three nitrogen atoms, wherein at least one of the three electron acceptor moieties is twisted relative to the central electron donor moiety defining a torsion angle in a range 40° to <90° whereby the TADF molecule has a photoluminescence quantum yield of >60% and a rate of reverse intersystem crossing from a lowest excited triplet state to a lowest excited singlet state of at least 1×10 s?1.
    Type: Application
    Filed: October 17, 2018
    Publication date: October 22, 2020
    Applicant: THE UNIVERSITY OF DURHAM
    Inventors: Andrew P. MONKMAN, Jonathan S. WARD, Martin R. BRYCE, Daniel G. CONGRAVE, Lays DOS-SANTOS