872705-63-0Relevant articles and documents
Planarity of terphenyl rings possessing: O -carborane cages: Turning on intramolecular-charge-transfer-based emission
So, Hyunhee,Kim, Jea Ho,Lee, Ji Hye,Hwang, Hyonseok,An, Duk Keun,Lee, Kang Mun
supporting information, p. 14518 - 14521 (2019/12/09)
To clarify the relationship between planarity and intramolecular charge transfer (ICT), two o-carboranyl compounds (TCB and FCB) containing different ortho-type terphenyl rings, namely, perfectly distorted or planar phenyl rings, were synthesised and fully characterised. Although the emission spectra of both compounds presented intriguing dual-emission patterns in solution at 298 or 77 K and in the film state, distorted TCB mostly showed locally excited emission, whereas planar FCB demonstrated intense emission corresponding to an ICT transition. Interestingly, the emission efficiencies and radiative decay constants of terphenyl-based o-carboranyl compounds were gradually enhanced by increasing the planarity of the terphenyl groups. These results verify the existence of a strong relationship between the planarity of appended aryl groups and ICT-based radiative decay in o-carborane-substituted compounds.
Fluorenofluorene derivative and organic light-emitting device prepared by same
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Paragraph 0057; 0058; 0061, (2018/10/19)
The invention provides a fluorenofluorene derivative and an organic light-emitting device prepared by the same and relates to the technical field of organic photoelectric materials. The fluorenofluorene derivative and the organic light-emitting device prepared by the same have the advantages that the fluorenofluorene derivative is prepared by connecting a substituted or unsubstituted condensed imidazole derivative to a fluorenofluorene host, the prepared fluorenofluorene derivative has certain electron transport ability, the composition of holes and electrons on a light-emitting layer is benefited, and the fluorenofluorene derivative is good in stability and luminous efficiency, simple to synthesize, easy in synthesizing operation, capable of being used in the organic light-emitting deviceto serve as the light-emitting layer doping material and capable of effectively solving the problems that the blue light-emitting material in the organic light-emitting device is low in luminous efficiency and short in service life; the organic light-emitting device is high in luminous efficiency and long in service life.
A containing [...] compound and its organic light-emitting device (by machine translation)
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Paragraph 0076; 0077; 0080, (2018/11/27)
The present invention provides a containing [...] compound and its organic light-emitting device, relates to organic photoelectric material technical field. The invention through [...] fluorene main body connected with the aromatic amine, substituted or not substituted fused imidazole, fused oxazole derivative to obtain a containing [...] compound, is a dual polarity transmission material, holes and electrons in the luminescent layer is of composite, has good stability and light-emitting efficiency, it is simple and easy to operate, and can be applied to organic light-emitting device as the dopant material in the luminescent layer, the organic light-emitting device can effectively solve the blue light-emitting material in the light emitting efficiency is low, the problem of short service life, its organic light emitting device having high luminous efficiency, long service life. (by machine translation)