Sichuan Knowledge Express Institute for Innovative Technologies Co., Ltd

Larisa Mataranga-Popa

Hartmut Yersin

Rafal Czerwieniec

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 (CT) for the direct rapid occupation and emission of the charge transfer singlet state (CT), so that aCT&#x2192;Sfluorescence occurs without a thermal activation.

Direct singlet capture organic molecules with short emission decay time and application thereof in optoelectronic devices

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 &#x394;E(S&#x2212;T) 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.

Organic molecules having two non-conjugated bridges between a donor and an acceptor for effective thermally activated delayed fluorescence for use in optoelectronic devices

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Wuppertal, Germany

Larisa Mataranga-Popa