Abstract: Red-emitting platinum (II) Schiff base complexes with high emission quantum efficiency are prepared. These materials can be used to fabricate OLEDs.

Abstract: The present invention relates to a composition of a superfluorescent cerium (III)-containing chelate having ultra-short decay time, especially a molecular composition for OLED applications, having a neutral donor in the form of a Ce(III) chelate and a neutral fluorescent receptor molecule. The composition of the present invention can be used to produce pure color luminescence with very short emission decay time, especially for a dark blue luminous region. The composition utilizes an excited state dual capture mechanism, and such kind of novel exciton capture mechanism can be classified into a fifth-generation organic light-emitting diode (OLED) and other photoelectric devices.

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.

Abstract: The invention provides an alkynyl Au (III) complex having the structure shown in Formula I, wherein R1-R17 are as defined in the specification. The alkynyl Au (III) complex provided by the invention has excellent luminescent properties such as short luminescence life, high external quantum efficiency, and efficiency roll reduced in actual high-luminance use, and is currently the best result obtained in the research of Au (III) complexes, especially alkynyl Au (III) complexes. In addition the invention further provides a light-emitting device.

Abstract: Red-emitting platinum (II) Schiff base complexes with high emission quantum efficiency are prepared. These materials can be used to fabricate OLEDs.

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.

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.