- Phenanthro imidazole structure has the thermal delay fluorescent material and its preparation method and application (by machine translation)
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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)
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- 1,2,4-thiadiazole compound, preparation method and application thereof
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The invention discloses a 1,2,4-thiadiazole compound, a preparation method and an application thereof. The 1,2,4-thiadiazole compound used as a light emitting layer material of an OLED device is capable of obviously promoting the performances of the device, such as luminous intensity, current efficiency, power efficiency, external quantum efficiency and chroma and is capable of prolonging the service life of the device.
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Paragraph 0299-0301
(2019/02/04)
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- 1, 2, 4-thiadazoles compound and preparation method and application thereof
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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.
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Paragraph 0131
(2019/04/09)
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- Organic compound taking 9,9'-spirobifluorene as core and application of organic compound in OLED (organic light emitting diode) device
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The invention relates to an organic compound taking 9,9'-spirobifluorene as the core and an application of the organic compound in an OLED (organic light emitting diode) device. The general structuralformula of the organic compound is shown in general formula (I). The organic compound has high glass transition temperature, high molecular heat stability, proper HOMO and LUMO energy levels and higher Eg, and the photoelectric performance of the OLED device can be effectively improved and the service life of the OLED device can be effectively prolonged through device structure optimization.
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Paragraph 0173; 0174
(2018/04/21)
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