864377-31-1Relevant articles and documents
Electron transport material, preparation method thereof and organic light-emitting device
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Paragraph 0067-0071; 0080-0084, (2021/04/14)
The invention discloses an electron transport material, a preparation method thereof and an organic light-emitting device, and belongs to the technical field of chemical and organic light-emitting materials, in the structural general formula of the electron transport material, m and n are independently 0 or 1, and m and n are not 0 at the same time; W, Q and Z are independently C or N, and at least one of W, Q and Z is N; X and Y are independently O or S. By introducing a benzoheterocycle rigid structure, the electron transport material provided by the invention has good film-forming property and thermal stability. The electron transport material provided by the invention has high electron injection and movement rates. The electron transport material can improve the electron transport efficiency from an electron transport layer to a light-emitting layer, thereby improving the light-emitting efficiency of a device, reducing the driving voltage of the device, and enhancing the durability of the obtained organic light-emitting device.
Heterocyclic com pounds and organic light-emitting diode including the same
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, (2021/01/19)
The present invention relates to a novel heterocyclic compound and an organic electroluminescent device comprising the same. The heterocyclic compound is represented by the following Chemical Formula 1, and the organic electroluminescent device including the heterocyclic compound has excellent driving voltage, luminous efficiency, and lifespan properties. Chemical Formula 1. (by machine translation)
Electron transporting and hole blocking organic material and application thereof in thin-film light-emitting diode
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Paragraph 0005, (2020/11/02)
The invention provides an electron transporting and hole blocking material with an A-D-A link structure as a core. The material is applied to a thin-film semiconductor light-emitting diode, for example, an organic light-emitting diode and a quantum dot thin-film light-emitting diode; and the molecule of the material takes bipolar carbazole and a derivative group thereof as electron donating centers, so a relatively high triplet state energy level can be maintained to ensure exciton blocking capability.