For professionals in the fields of organic electronics, materials science, and advanced manufacturing, understanding the precise properties of key chemical compounds is fundamental to innovation and efficient production. Bis[2-(diphenylphosphino)phenyl]ether oxide, or DPEPO (CAS 808142-23-6), is one such compound that has gained significant traction, particularly in the OLED industry. As a dedicated DPEPO manufacturer and supplier, we aim to provide R&D scientists and procurement managers with a comprehensive overview of DPEPO's properties and its critical role in advanced applications.

Key Properties of DPEPO (CAS 808142-23-6)

DPEPO is characterized by a unique molecular structure that imparts a set of highly desirable electronic and thermal properties. When considering to buy DPEPO, these properties are paramount:

  • Chemical Name: Bis[2-(diphenylphosphino)phenyl]ether oxide
  • CAS Number: 808142-23-6
  • Molecular Formula: C36H28O3P2
  • Molecular Weight: 570.55 g/mol
  • Appearance: Typically a White Powder. This consistent physical state aids in handling and processing.
  • Purity: High purity is critical for electronic applications. DPEPO is often supplied in sublimed grades (>99.5% by HPLC) to ensure optimal performance in OLED devices and other sensitive electronic components.
  • Solubility: It exhibits good solubility in common organic solvents such as Chloroform, THF, and Toluene, which is advantageous for solution-based processing methods often employed in fabricating organic electronic devices.
  • Optical Properties:
    • UV Absorption: Typically shows absorption around 292 nm (in CH2Cl2).
    • Fluorescence: Exhibits fluorescence peaks, for example, around 307 nm or 311 nm (in CH2Cl2), which are relevant for its role in light-emitting applications.
  • Thermal Properties:
    • TGA (Thermogravimetric Analysis): High thermal decomposition temperatures (e.g., TGA > 300°C or >320°C for 0.5% weight loss) indicate excellent thermal stability, crucial for device longevity under operating conditions.
  • Electronic Properties:
    • Large Band-Gap: Essential for host materials in high-energy emitting systems like blue TADF OLEDs.
    • High Triplet Energy (T1): Facilitates efficient energy transfer to emissive dopants.
    • Electron Transport Layer (ETL) Functionality: Its molecular design allows for efficient electron mobility.
    • Hole Blocking Layer (HBL) Functionality: Due to a deep HOMO level, it effectively prevents hole leakage.

Applications and Sourcing Considerations

These properties make DPEPO indispensable as a host material for blue TADF emitters, an electron transport material, and a hole blocking material in OLEDs. For procurement managers, securing a reliable DPEPO supplier in China that guarantees consistent quality and competitive DPEPO price is vital. For R&D scientists, understanding these properties helps in designing and optimizing novel organic electronic devices.

We are a leading provider of high-purity DPEPO. Whether you are researching new electronic materials or scaling up production, we are equipped to meet your needs. For information on DPEPO price, technical specifications, or to place an order, please contact us. We are committed to supporting your innovation with reliable, high-quality DPEPO.