952514-79-3Relevant articles and documents
Compound and organic electroluminescent device
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Paragraph 0064-0067; 0113-0116, (2020/06/09)
The invention provides a novel compound, and particularly relates to a compound containing an anthracene structure connected with a heterocyclic structure and application of the compound in an organiclight-emitting device. The novel organic electroluminescent material, namely the compound of the invention is represented by a formula (I) which is described in the specification. The novel compoundprovided by the invention has optimized electron injection and transmission capability, good exciton blocking performance, and remarkable and excellent electron mobility, and shows good film-forming performance when being applied to an organic layer of the organic light-emitting device, so the efficiency and stability of an electron transmission layer can be improved. The device adopting the compound has the advantages of high luminous efficiency, low driving voltage and long service life.
A phenanthro imidazole symmetrical derivatives of the main material and electroluminescent device
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Paragraph 0193-0197, (2019/04/06)
The invention relates to a phenanthroimidazole symmetric derivative host material. The structure of the host material is represented by formula I, and can be used to form an organic electroluminescent device with the advantages of high luminescence efficiency, low driving voltage, long life, high brightness and high color purity. In the formula I, R1 and R2 are respectively independently selected from the hydrogen atom, substituted or unsubstituted C1-C30 alkyl groups, C1-C30 cycloalkyl groups, C1-C30 saturated alkyl groups, substituted or unsubstituted C1-C30 alkyloxy groups, substituted or unsubstituted C6-C30 aryl groups, substituted or unsubstituted C6-C30 aryloxy groups, substituted or unsubstituted C6-C30 arylamino groups, substituted or unsubstituted C2-C30 heterocyclic groups, substituted or unsubstituted C6-C30 fused polycyclic groups, hydroxy groups, cyan groups or substituted or unsubstituted amino groups.
QUINAZOLINE DERIVED COMPOUNDS FOR ELECTRONIC FILMS AND DEVICES
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, (2019/01/06)
The invention provides a composition comprising at least one compound selected from the group consisting of the following (A, B, C and D): A) wherein R1, R2 and R3 are each described herein; and wherein Formula 1 comprises at least three C-N double bonds; and wherein one or more hydrogens may be optionally substituted with deuterium; B) wherein R1’, R2’, R3’, R4’, R5’ and L are each described herein, and and wherein if R1’ comprises a biphenyl, it does not comprises a carbazole; and wherein one or more hydrogens may be optionally substituted with deuterium; C) wherein R1”, R2”, R3”, R4” and R5” are each described; and wherein if R1’ comprises a biphenyl, it does not comprises a carbazole; and wherein one or more hydrogens may be optionally substituted with deuterium; and D) a combination thereof.