49662-17-1Relevant articles and documents
Phenanthro imidazole structure has the thermal delay fluorescent material and its preparation method and application (by machine translation)
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, (2019/10/17)
The invention belongs to the photoelectric material applied science and technology field, in particular to an imidazole structure west of the thermotropic delay fluorescent material, its application and electroluminescent device. This kind of material is rich in electron and hole of phenanthro imidazole structure and phenazino structure through the aromatic group is bridged and formed, is a satisfied at the same time radiation transition constant kr bigger and single triplet energy gap Δ EST Of small delay fluorescent material. Intensive donor - receptor group combined effectively avoids the electronic device with the hole carrier density imbalance caused by the triplet state of the - charge reaction energy loss, thereby improving the device [...] problem. In addition, the Philippines and imidazole structure and phenazino structure can effectively increase the orbital overlap at the same time increase the rigidity of the molecule, thereby inhibiting the non-radiation transition, effectively improve the light emitting efficiency of the device, is a kind of fine light-emitting layer and the guest material leaves the photosphere material, and the luminescent layer body material. (by machine translation)
1, 2, 4-thiadazoles compound and preparation method and application thereof
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Paragraph 0131, (2019/04/09)
The invention discloses a 1, 2, 4-thiadazoles compound and a preparation method and application thereof. The compound serves as an OLED device light outgoing layer material, can remarkably improve luminous intensity, current efficiency, power efficiency, outer quantum efficiency and chromaticity of a device and can prolong service life of the device.