1407183-66-7

Upstream product

• 609-73-4 o-nitroiodobenzene 
• 244205-40-1 (2-bromophenyl)boronic acid 
• 17613-47-7 2-bromo-2′-nitro-1,1′-biphenyl 
• 854952-58-2 N-phenyl-9H-carbazol-3-boronic acid 
• 3652-89-9 4-bromo-9H-carbazole 
• 3652-88-8 4-chloro-9H-carbazole 
• 1187617-32-8 9H-carbazol-4-yl-trifluoromethanesulfonate 

Downstream Products

• 1423010-77-8 C₅₁H₃₃N₅ 
• 1407183-67-8 C₄₆H₃₀N₄ 
• 1423010-78-9 C₄₅H₂₉N₅ 
• 1377150-36-1 C₅₁H₃₃N₅ 

Relevant academic research and scientific papers

Design of hole transport type host for stable operation in blue organic light-emitting diodes

Molecular design of the hole transport type host for mixed host was investigated to improve the lifetime of the phosphorescent organic light-emitting diodes. A negative polaron stabilizing hole transport type host design was employed and the effect of the negative polaron stabilizing unit was investigated. Dibenzofuran or benzonitrile was introduced as the negative polaron stabilizing unit in the bicarbazole backbone structure of the hole transport type host. Two host materials were synthesized and the comparison of them proposed that the negative polaron stabilizing unit is a key to the lifetime of the phosphorescent organic light-emitting diodes. The dibenzofuran and benzonitrile embedded bicarbazole hosts performed better than the mCBP host. The dibenzofuran and benzonitrile modified bicarbazole hosts demonstrated high external quantum efficiency of 18.6 and 19.1%, respectively and lifetime extension by 30% compared with the conventional host without the negative polaron stabilizing unit.

Novel compound and organic light emitting device comprising the same

The present invention provides a novel compound and an organic light emitting device comprising the same. A compound represented by chemical formula 1 can be used as a material of an organic material layer of the organic light emitting device, and can improve efficiency, low driving voltage, and/or lifespan characteristics in the organic light emitting device.COPYRIGHT KIPO 2020

Novel compound and organic light emitting device comprising the same

The present invention provides a novel compound and an organic light emitting device using the same. The compound represented by the chemical formula 1 can be used as a material of an organic material layer of the organic light emitting device, and can improve efficiency, low driving voltage, and/or lifespan characteristics in the organic light emitting device.COPYRIGHT KIPO 2020

CARBAZOLE BASED COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME

The present specification provides a carbazole-based compound represented by chemical formula 1, and an organic light-emitting device comprising the same. According to one embodiment of the present specification, the compound may be used as a material for an organic material layer in an organic light-emitting device to improve efficiency, lower driving voltage, and/or improve lifetime characteristics of the device. Additionally, another embodiment of the present specification provides an organic light-emitting device which comprises: a first electrode; a second electrode disposed to face the first electrode; and one or more organic material layers disposed between the first electrode and the second electrode, wherein at least one of the organic layer materials comprises a compound represented by the chemical formula 1.COPYRIGHT KIPO 2017

Organic electroluminescent element and material for organic electroluminescent elements

An organic electroluminescence device includes: a cathode; an anode; and an organic thin-film layer having one or more layers and provided between the anode and the cathode, in which the organic layer includes an emitting layer. The emitting layer includes a first host material, a second host material and a phosphorescent dopant material. The first host material is a compound represented by a formula (1A). The second host material is a compound represented by a formula (2A).

MATERIAL FOR LIGHT EMITTING ELEMENT AND LIGHT EMITTING ELEMENT

An organic thin-film light-emitting element is provided. By using a material for light-emitting element comprising a compound having a particular carbazole skeleton, the organic thin-film light-emitting element has both high luminous efficiency and durability.

BISCARBAZOLE DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE ELEMENT USING SAME

A biscarbazole derivative is represented by the following formula (1). A1 and A2 of the following formula (1) represent an aromatic hydrocarbon group having 6 to 30 ring carbon atoms or an aromatic heterocyclic group having 1 to 30 ring carbon atoms. However, at least one of A1 and A2 represents an aromatic heterocyclic group having 1 to 30 ring carbon atoms. Y1 to Y15 represent CR or a nitrogen atom. One of Y8 to Y11 is C (carbon atom) obtained by removing R from CR. The obtained C is bonded to L3. R each independently represents a hydrogen atom, an aromatic hydrocarbon group or the like. L1 to L3 represent a single bond or a divalent linking group. When L3 is a single bond and is bonded to Y11, L1 and L2 are divalent linking groups.