694533-44-3

Upstream product

• 19402-87-0 9-benzyl-9H-carbazole 
• 96853-15-5 9-benzyl-3,6-diiodo-9H-carbazole 
• 57103-02-3 3,6-diiodocarbazole 
• 122-39-4 diphenylamine 
• 86-74-8 9H-carbazole 
• 608527-58-8 N³,N³,N⁶,N⁶-tetraphenyl-9H-carbazole-3,6-diamine 
• 589-87-7 1,4-bromoiodobenzene 
• 57102-42-8 N-(4-bromophenyl)carbazole 
• 601454-29-9 9‐(4‐bromophenyl)‐3,6‐diiodocarbazole 

Relevant academic research and scientific papers

Novel hole-transporting materials based on 1,4-bis(carbazolyl)benzene for organic light-emitting devices

Novel hole-transporting molecules containing 1,4-bis(carbazolyl)benzene as a central unit and different numbers of diphenylamine moieties as the peripheral groups have been synthesized and characterized. These compounds are thermally stable with high glass transition temperatures of 141-157°C and exhibit chemically reversible redox processes. Their amorphous state stability and hole transport properties can be significantly improved by increasing the number of diphenylamine moieties in the outer part and by controlling the symmetry of the carbazole-based molecules. These compounds can be used as good hole-transporting materials for organic electroluminescent (EL) devices. The device performance based on tri- and tetra-substituted carbazole derivatives is comparable to that of a typical 4,4′-bis[N-(1-naphthyl)-N-phenylamino] biphenyl (NPB)-based device.

Organic micromolecule material based on 2,6-dimethyl-4-cyanophenyl receptor unit, preparation and application

The invention belongs to the technical field of organic photoelectric materials, and discloses an organic micromolecule material based on a 2,6-dimethyl-4-cyanophenyl receptor unit, preparation and application. The organic micromolecule material has a structural formula as shown in formula (I), and Ar in the formula shows a phenyl aromatic amine heterocycle or phenyl aromatic amine donor unit. Thematerial has a weak intramolecular charge transfer state, and thus, fluorescence emission of a zone from dark blue to ultraviolet can be realized. Meanwhile, because the molecules have quite short effective conjugated length, the material has high triplet state energy level. In the application of an organic electroluminescent device, the problem of unbalanced charge carriers of a unipolar organicphotoelectric material can be solved effectively, therefore, the structure of the device is simplified, and the performance of the device is improved.

Organic light-emitting diode materials

Described herein are molecules for use in organic light emitting diodes. Example molecules comprise at least one acceptor moiety A, at least one donor moiety D, and optionally one or more bridge moieties B. Each moiety A is covalently attached to either the moiety B or the moiety D, each moiety D is covalently attached to either the moiety B or the moiety A, and each moiety B is covalently attached to at least one moiety A and at least one moiety D. Values and preferred values of moieties A, D, and B are defined herein.

COMPOUND, LIGHT-EMITTING MATERIAL, AND ORGANIC LIGHT-EMITTING ELEMENT

The compound represented by the following general formula is useful as a light emitting material. Ar 1 represents an arylene group, Ar 2 and Ar 3 represent an aryl group, and R 1 to R 8 represent a hydrogen atom or a substituent, provided that at least one of R 1 to R 8 represents a diarylamino group.