Description

Bis-4-(n-Carbazolyl)Phenyl)Phenylphosphine Oxide CAS NO 1233407-28-7 is a high-purity, functional organic compound featuring a phosphine oxide core flanked by carbazole-based aromatic systems. This molecular architecture is critical for its role as a high-performance host or electron-transport material in advanced optoelectronic devices. It is primarily sought by manufacturers and R&D teams in the organic electronics and specialty chemical sectors.

Application

• OLED (Organic Light-Emitting Diode) Devices: Serves as a key host material in the emissive layer (EML) for phosphorescent OLEDs (PhOLEDs), particularly for blue emitters, due to its high triplet energy and good charge transport properties.
• OPV (Organic Photovoltaic) Cells: Used as an electron-transport or interfacial layer to enhance charge extraction and improve device efficiency and stability.
• Perovskite Solar Cells: Functions as a passivation or hole-blocking layer to reduce interfacial recombination and improve the open-circuit voltage and longevity of the cells.
• Organic Semiconductor Research: A valuable building block for synthesizing novel polymers and small molecules for exploring structure-property relationships in electronic materials.
• Light-Emitting Electrochemical Cells (LECs): Can be utilized as a component to balance charge injection and transport within the active layer.
• Printed Electronics: Suitable for formulation into inks for solution-processed fabrication of thin-film electronic components.

Basic Information

Product Name	Bis-4-(n-Carbazolyl)Phenyl)Phenylphosphine Oxide
CAS No.	1233407-28-7
Molecular Formula	C42H27N2OP
Molecular Weight	606.65 g/mol
Synonyms	BCPO; Bis(4-(9H-carbazol-9-yl)phenyl)phenylphosphine oxide; 9,9'-(4-(Phenylphosphoryl)dibenzene-4,1-diyl)bis(9H-carbazole); Phenylbis(4-(9H-carbazol-9-yl)phenyl)phosphine oxide; (4-(9H-Carbazol-9-yl)phenyl)phenylphosphine oxide dimer; Host material for OLED; Electron transport material
EINECS	Contact for details

Quality Control

Every batch of Bis-4-(n-Carbazolyl)Phenyl)Phenylphosphine Oxide is produced and controlled under strict quality management systems to ensure consistency for demanding electronic applications. Our products undergo rigorous quality testing, including advanced chromatographic and spectroscopic methods, to ensure compliance with industry standards. Certificates of Analysis (COA) detailing purity, identity, and key impurity profiles are available upon request.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed in a dry environment to prevent moisture absorption, which can affect performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Purity (HPLC)	≥ 99.0% (Area %)
Melting Point	Contact for details
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 10 ppm
Moisture Content (KF)	≤ 0.5%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.