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AssigneeSichuan Knowledge Express Institute for Innovative Technologies Co., Ltd
InventorsHartmut YERSIN, Larisa MATARANGA-POPA, Rafal CZERWIENIEC
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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.
An optoelectronic device in which upon excitation of an organic molecule direct and fast relaxation and intersystem crossing processes for filling the charge transfer singlet state (1CT) from the substantially isoenergetic charge transfer triplet state (1CT) of the organic molecule, so that a 1CT→S0 fluorescence occurs, without the need for thermal activation, where S0 stands for the electronic ground state.
An organic molecule comprising a structure or consisting of a structure according to a formula selected from the group consisting of formula Ia, formula Ib, formula IIa, formula IIb, formula IIc, formula IId, formula IIe, formula IIIa, formula IIIb, Formula VIII, Formula VIII, Formula IVa, Formula IVa, Formula IVa, Formula IVa, Formula V, Formula VI, Formula VII, Formula VIII, Formula IX, Formula X, Formula XI, Formula XII Formula XIII Formula XIV Formula XV and Formula XVI. The hydrogen atoms in one, several or in all positions of the organic molecule of the abovementioned formulas are replaced by deuterium.
Dependencies are inferred from the claim text.