212385-73-4

Basic information

• Product Name: 9-(4'-BroMo-4-biphenylyl)-9H-carbazole
• Synonyms: 9-(4'-BroMo-4-biphenylyl)-9H-carbazole;4-Bromo-4'-(carbazol-9-yl)biphenyl;9-(4'-Bromo-1,1'-biphenyl-4-yl)-9H-carbazole;9-(4'-Bromobiphenyl-4-yl)-9H-carbazole;4'-Brom[1,1'-biphenyl]-4-yl)-9H-carbazol;9-(4'-Bromo-4-Biphenylyl)Carbazole
• CAS NO: 212385-73-4
• Molecular Formula: C₂₄H₁₆BrN
• Molecular Weight: 398.29454
• Mol File: 212385-73-4.mol

Chemical Properties

• Melting Point: 260 °C
• Boiling Point: 548.3±42.0 °C(Predicted)
• Appearance: /
• Density: 1.32±0.1 g/cm3(Predicted)
• Storage Temp.: Sealed in dry,Room Temperature
• CAS DataBase Reference: 9-(4'-BroMo-4-biphenylyl)-9H-carbazole(CAS DataBase Reference)
• NIST Chemistry Reference: 9-(4'-BroMo-4-biphenylyl)-9H-carbazole(212385-73-4)
• EPA Substance Registry System: 9-(4'-BroMo-4-biphenylyl)-9H-carbazole(212385-73-4)

Safety Data

• Hazardous Substances Data: 212385-73-4(Hazardous Substances Data)

Usage

Uses

Used in Organic Optoelectronic Devices:
9-(4'-Bromo-4-biphenylyl)-9H-carbazole is used as a key component in organic optoelectronic devices due to its enhanced electronic and photophysical properties. The presence of the bromine substituent allows for further functionalization and modification of its chemical structure, enabling the tailoring of its properties for specific applications.
Used in Organic Light-Emitting Diodes (OLEDs):
In the OLED industry, 9-(4'-Bromo-4-biphenylyl)-9H-carbazole is used as a material for improving the performance of light-emitting devices. Its excellent electron and hole-transporting properties contribute to higher efficiency and better device stability.
Used in Organic Photovoltaics:
9-(4'-Bromo-4-biphenylyl)-9H-carbazole is utilized as a component in organic photovoltaics to enhance the efficiency of solar cells. Its electron-transporting and hole-transporting properties improve the charge separation and collection processes, leading to increased power conversion efficiency.
Used in Organic Field-Effect Transistors (OFETs):
In the OFET industry, 9-(4'-Bromo-4-biphenylyl)-9H-carbazole is employed as a material for improving the performance of transistors. Its electronic properties contribute to higher charge carrier mobility and better device performance, making it suitable for various electronic applications.

Upstream product

• 419536-33-7 4-(carbazol-9-yl)phenylboronic acid 
• 589-87-7 1,4-bromoiodobenzene 
• 106-37-6 1.4-dibromobenzene 
• 86-00-0 2-nitrobiphenyl 
• 577-19-5 2-nitrophenyl bromide 
• 98-80-6 phenylboronic acid 
• 92-66-0 4-bromo-1,1'-biphenyl 
• 105946-82-5 4-bromo-4'-iodobiphenyl 
• 86-74-8 9H-carbazole 
• 92-86-4 4-(4-bromophenyl)bromobenzene 
• 68-12-2 N,N-dimethyl-formamide 

Downstream Products

• 1311408-02-2 9-(4'-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-[1,1'-biphenyl]-4-yl)-9H-carbazole 
• 1240963-65-8 9-(4'-bromo-[1,1'-biphenyl]-4-yl)-3,6-diiodo-9H-carbazole 
• 1069137-74-1 N,N-di([1,1'-biphenyl]-4-yl)-4'-(9H-carbazol-9-yl)-[1,1'-biphenyl]-4-amine 

Relevant articles and documents

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The D-π-A type phosphonium salts in which electron acceptor (A=-+PR3) and donor (D=-NPh2) groups are linked by polarizable π-conjugated spacers show intense fluorescence that is classically ascribed to excited-state intramolecular charge transfer (ICT). Unexpectedly, salts with π=-(C6H4)n- and -(C10H6C6H4)- exhibit an unusual dual emission (F1 and F2 bands) in weakly polar or nonpolar solvents. Time-resolved fluorescence studies show a successive temporal evolution from the F1 to F2 emission, which can be rationalized by an ICT-driven counterion migration. Upon optically induced ICT, the counterions move from -+PR3 to -NPh2 and back in the ground state, thus achieving an ion-transfer cycle. Increasing the solvent polarity makes the solvent stabilization dominant, and virtually stops the ion migration. Providing that either D or A has ionic character (by static ion-pair stabilization), the ICT-induced counterion migration should not be uncommon in weakly polar to nonpolar media, thereby providing a facile avenue for mimicking a photoinduced molecular machine-like motion.

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The invention discloses a high-efficiency electron blocking material and an organic electroluminescence device using the same. The structural formula is shown as a formula I in the specification. By using the high-efficiency electron blocking material, carriers and excitons are limited in a luminescent layer, electron escape and exciton diffusion can be effectively eliminated, so that the externalquantum efficiency is improved, and the service life of a device is further prolonged. According to an organic electroluminescence device prepared from the high-efficiency electron blocking layer material, the driving voltage is greatly reduced, the consumption of electric energy is greatly reduced, and the luminous efficiency is remarkably improved. In addition, by reducing the driving voltage,the service life of the organic electroluminescence device is remarkably prolonged.

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