95820-64-7Relevant academic research and scientific papers
Compounds using fluorene as core, preparation method of compounds and application of compounds in organic light emission diode device
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, (2019/10/07)
The invention relates to organic compounds using fluorene as a core, a preparation method of the compounds and an application of the compounds in an organic light emission diode (OLED) device. The compounds have a following structure: the fluorene is connected with a dibenzo five-membered ring and ring structure through a carbon-carbon bond, the carbon-carbon bond connection not only improves the chemical stability of the material, but also avoids exposure of active positions of a branched chain group, and the whole molecule is a larger rigid structure and has a higher triplet state energy level (T1); the compounds have large steric hindrance, are not easy to rotate, and have a more stable stereoscopic space structure, so that the compounds have a higher glass transition temperature and molecular thermal stability; in addition, HOMO and LUMO distribution positions of the compounds are separated from each other, so that the compounds have suitable HOMO and LUMO energy levels; therefore, the compounds can effectively improve the luminous efficiency and the service life of the device after being applied to the OLED device.
Organic compound taking fluorene as core and application of organic compound
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Paragraph 0052-0057, (2017/12/28)
The invention relates to an organic compound taking fluorene as a core and application of the organic compound in an OLED (Organic Light Emission Diodes) device. The compound is of a structure that the fluorene is connected with a dibenzo five-membered ri
