Description

(4′-(9H-Carbazol-9-Yl)-2,2′-Dimethyl-[1,1′-Biphenyl]-4-Yl)Diphenylphosphine Oxide is a high-performance organic electronic material, specifically a phosphine oxide derivative with a carbazole-biphenyl hybrid structure. This compound matters for its exceptional role as a host material and electron-transporting component in advanced optoelectronic devices. It is critically needed by manufacturers and R&D teams in the organic light-emitting diode (OLED) and photonics industries to enhance device efficiency, stability, and luminance.

Application

• OLED Emissive Layer Host Material: Primarily used as a host for phosphorescent and thermally activated delayed fluorescence (TADF) emitters in red, green, and blue OLED displays and lighting.
• Electron-Transport Layer (ETL) Component: Incorporated into ETL formulations to improve electron injection and mobility, balancing charge transport in multilayer OLED architectures.
• Organic Photovoltaic (OPV) Cells: Serves as an electron-accepting or interfacial layer material to enhance charge separation and power conversion efficiency.
• Perovskite Light-Emitting Diodes (PeLEDs): Used as a charge-transporting or passivation layer to improve film morphology and device operational stability.
• Research & Development: A key building block for synthesizing novel high-triplet-energy materials and for fundamental studies in photophysics and material science.
• Printed Electronics: Suitable for solution-processable ink formulations used in roll-to-roll manufacturing of flexible electronic devices.

Basic Information

Product Name	(4′-(9H-Carbazol-9-Yl)-2,2′-Dimethyl-[1,1′-Biphenyl]-4-Yl)Diphenylphosphine Oxide
CAS No.	1206906-21-9
Molecular Formula	C40H30NOP
Molecular Weight	571.65 g/mol
Synonyms	9-[4'-(Diphenylphosphinyl)-2,2'-dimethyl[1,1'-biphenyl]-4-yl]-9H-carbazole; CDBP; (4'-(9H-Carbazol-9-yl)-2,2'-dimethylbiphenyl-4-yl)diphenylphosphine oxide; 2,2'-Dimethyl-4'-(9-carbazolyl)-4-diphenylphosphinylbiphenyl; PO-CBP; Biphenyl-carbazole phosphine oxide derivative; Host material for OLED; ETL material
EINECS	Contact for details

Quality Control

Our electronic-grade materials are produced under strict quality management to ensure batch-to-batch consistency critical for device performance. Every lot undergoes comprehensive analysis, including HPLC for purity verification and residual metal analysis (ICP-MS) to meet the stringent requirements of the optoelectronics industry. Certificates of Analysis (COA) detailing all specifications are provided with each shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at room temperature (15-25°C). This material is moisture-sensitive; keep the original container sealed under an inert atmosphere (nitrogen or argon) for long-term storage to prevent degradation.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 99.5% (Area %)
Residual Solvents (GC)	≤ 300 ppm (total)
Heavy Metals (ICP-MS)	≤ 10 ppm (total)
Melting Point	Contact for details
Thermal Decomposition Temperature (Td)	≥ 400 °C

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