Patents by Inventor Larisa MATARANGA-POPA

Larisa MATARANGA-POPA 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).

  • Direct singlet capture organic molecules with short emission decay time and application thereof in optoelectronic devices
    Patent number: 11404645
    Abstract: The invention relates to novel pure organic emitter molecules and optoelectronic devices containing these organic emitter molecules. According to the invention, in the optoelectronic device, after the excitation of an organic molecule, relaxation and intersystem crossing processes also result from the almost isoenergetic charge transfer triplet state (3CT) for the direct rapid occupation and emission of the charge transfer singlet state (1CT), so that a 1CT?S0 fluorescence occurs without a thermal activation.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: August 2, 2022
    Assignee: SICHUAN KNOWLEDGE EXPRESS INSTITUTE FOR INNOVATIVE TECHNOLOGIES CO., LTD
    Inventors: Hartmut Yersin, Larisa Mataranga-Popa, Rafal Czerwieniec
  • Organic molecules having two non-conjugated bridges between a donor and an acceptor for effective thermally activated delayed fluorescence for use in optoelectronic devices
    Patent number: 11201291
    Abstract: The invention relates to purely organic emitter molecules of a new type according to formula I and to the use thereof in optoelectronic devices, in particular in organic light-emitting diodes (OLEDs), comprising donor D: an aromatic or heteraromatic chemical group on which the HOMO is located and which optionally has at least one substitution; acceptor A: an aromatic or heteromatic chemical group on which the LUMO is located and which optionally has at least one substitution; bridge B1, bridge B2: organic groups that link the donor D and the acceptor A in a non-conjugated manner; wherein in particular the energy difference ?E(S1?T1) between the lowest excited singlet (S1) state of the organic emitter molecule and the triplet (T1) state of the organic emitter molecule lying thereunder is less than 2000 cm?1.
    Type: Grant
    Filed: July 28, 2016
    Date of Patent: December 14, 2021
    Assignee: SICHUAN KNOWLEDGE EXPRESS INSTITUTE FOR INNOVATIVE TECHNOLOGIES CO., LTD
    Inventors: Hartmut Yersin, Rafal Czerwieniec, Larisa Mataranga-Popa
  • DIRECT SINGLET CAPTURE ORGANIC MOLECULES WITH SHORT EMISSION DECAY TIME AND APPLICATION THEREOF IN OPTOELECTRONIC DEVICES
    Publication number: 20190245151
    Abstract: The invention relates to novel pure organic emitter molecules and optoelectronic devices containing these organic emitter molecules. According to the invention, in the optoelectronic device, after the excitation of an organic molecule, relaxation and intersystem crossing processes also result from the almost isoenergetic charge transfer triplet state (3CT) for the direct rapid occupation and emission of the charge transfer singlet state (1CT), so that a 1CT?S0 fluorescence occurs without a thermal activation.
    Type: Application
    Filed: January 10, 2018
    Publication date: August 8, 2019
    Applicant: SICHUAN KNOWLEDGE EXPRESS INSTITUTE FOR INNOVATIVE TECHNOLOGIES CO., LTD
    Inventors: Hartmut YERSIN, Larisa MATARANGA-POPA, Rafal CZERWIENIEC
  • ORGANIC MOLECULES HAVING TWO NON-CONJUGATED BRIDGES BETWEEN A DONOR AND AN ACCEPTOR FOR EFFECTIVE THERMALLY ACTIVATED DELAYED FLUORESCENCE FOR USE IN OPTOELECTRONIC DEVICES
    Publication number: 20180219159
    Abstract: The invention relates to purely organic emitter molecules of a new type according to formula I and to the use thereof in optoelectronic devices, in particular in organic light-emitting diodes (OLEDs), comprising donor D: an aromatic or heteraromatic chemical group on which the HOMO is located and which optionally has at least one substitution; acceptor A: an aromatic or heteromatic chemical group on which the LUMO is located and which optionally has at least one substitution; bridge B1, bridge B2: organic groups that link the donor D and the acceptor A in a non-conjugated manner; wherein in particular the energy difference ?E(S1?T1) between the lowest excited singlet (S1) state of the organic emitter molecule and the triplet (T1) state of the organic emitter molecule lying thereunder is less than 2000 cm?1.
    Type: Application
    Filed: July 28, 2016
    Publication date: August 2, 2018
    Inventors: Hartmut YERSIN, Rafal CZERWIENIEC, Larisa MATARANGA-POPA