743453-07-8Relevant articles and documents
Organic compound, electronic component, comprising same and electronic device
-
Paragraph 0116; 0165-0168; 0173, (2021/07/17)
The invention provides an organic compound, an electronic component comprising the same and an electronic device, and belongs to the technical field of organic electroluminescence. The compound provided by the invention contains condensed rings of carbazole and fluorene, dibenzofuran or dibenzothiophene, has a rigid plane structure and high light-emitting quantum efficiency, and can improve the thermal stability and film stability of a material. According to the invention, the low triplet state energy level is effectively improved; and the compound is used for a light-emitting layer in a red light device, can effectively improve non-uniformity of charge transmission, improves the light-emitting efficiency and stability of the device, and effectively improves the performance of the device.
Polycyclic aromatic compound as well as preparation method and application thereof
-
Paragraph 0123-0126, (2021/07/21)
The invention discloses a polycyclic aromatic compound. The structural general formula of the polycyclic aromatic compound is shown as a chemical formula I or a chemical formula II. The invention also discloses a preparation method of the polycyclic aroma
Dark blue organic light-emitting material with high exciton utilization rate and preparation and application thereof
-
Paragraph 0046-0050, (2021/03/24)
The invention belongs to the technical field of organic photoelectric materials, and discloses a dark blue organic light-emitting material with a high exciton utilization rate as well as preparation and application thereof. The structure of the dark blue organic light-emitting material is shown as a formula I in the specification. The invention also discloses a preparation method of the dark blueorganic light-emitting material. The material provided by the invention is a dark blue luminescent material, can form hybrid local charge transfer state (HLCT) luminescence, realizes crossing of high-energy triplet state heat excitons to a singlet state reverse system, and improves the exciton utilization rate. Meanwhile, the dark blue organic light-emitting material is high in fluorescence quantum yield and high in carrier mobility. The material provided by the invention has good performance in organic light-emitting devices. The dark blue organic light-emitting material is used for preparingan organic light-emitting device.