1226810-15-6Relevant articles and documents
Polycyclic aromatic compound and preparation method thereof, light-emitting material, light-emitting layer, and organic electroluminescent device
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Paragraph 0067; 0071-0072; 0074, (2021/07/01)
The invention relates to the technical field of organic light-emitting materials, in particular to a polycyclic aromatic compound and a preparation method thereof, a light-emitting material, a light-emitting layer and an organic electroluminescent device. The polycyclic aromatic compound is selected from a compound shown in the following structural formula or a tautomer thereof, wherein the ring D and the ring E are respectively and independently 5-8-membered nitrogen-containing heteroaromatic hydrocarbon rings, Z1-Z11 are respectively and independently selected from C or N, the ring C can exist or does not exist, and the ring A and the ring C are respectively and independently selected from any one of substituted or unsubstituted aromatic ring groups, substituted or unsubstituted heteroaryl groups and substituted or unsubstituted aliphatic ring groups. According to the invention, the single-triplet state energy range is relatively small, and the efficiency roll-off of the organic electroluminescent device can be reduced.
NOVEL COMPOUND AND ORGANIC ELECTROLUMINESCENT DIVICE INCLUDING THE SAME
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Paragraph 0088-0090, (2019/08/01)
The present invention relates to a novel compound applied to an organic light emitting device to improve luminous efficiency and quantum efficiency thereof, and to an organic light emitting device including the same. The novel compound is represented by c
Novel pyridinyl triazolopyridine derivatives and use thereof
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Paragraph 0169-0171; 0176-0177, (2019/01/30)
The present invention relates to novel pyridinyl-triazolopyridine derivatives and uses thereof, and more specifically, to an aromatic organic material including pyrimidine and an organic electroluminescent device using the same. According to an embodiment of the present invention, the organic electroluminescent device using the aromatic organic material including the pyrimidine can obtain light at a short wavelength in a highly efficient manner while lowering the driving voltage.COPYRIGHT KIPO 2019