The content on our website is provided solely for general informational purposes.  It should not be considered, nor is it intended to provide advice or recommendations for the purchase, sale, or trade of any products or services.  Importantly, the information presented does not constitute an offer to sell or a solicitation of an offer to buy any product.

Please be aware that the availability of our products may vary across different markets due to regulatory restrictions or other considerations. Consequently, not all products or services may be available in your region or country. For specific inquiries regarding the availability and pricing of any product, please contact us at

General information

  • Name: PO-T2T
  • Full name: 2,4,6-Tris[3-(diphenylphosphinyl)phenyl]-1,3,5-triazine
  • CAS number: 1646906-26-4
  • Chemical formula: C57H42N3O3P3
  • Molecular weight: 909.80 g/mol
  • Absorption: λmax = 272 nm in DCM
  • Photoluminescence: λmax = 295 nm, 378 nm in DCM
  • HOMO/LUMO: HOMO = 7.6 eV, LUMO = 3.5 eV
  • Synonyms: -
  • Classification: Organic light-emitting diodes, Exciplex materials, PHOLED co-host materials, Host materials, Electron transport layer materials (ETL), TADF materials
  • Purity: Sublimed: >99.0% (HPLC)
  • Melting point: TGA: 460 °C
  • Appearance: Off-white powder/crystals

PO-T2T Specification: The Future of OLED Technology

The world of organic light-emitting diodes (OLEDs) is vast and ever-evolving. Among the myriad of materials and compounds that drive this technology forward, PO-T2T stands out as a promising material in the OLED stack.

Understanding PO-T2T

PO-T2T, known in full as 2,4,6-Tris[3-(diphenylphosphinyl)phenyl]-1,3,5-triazine, is an electron-deficient compound. Its unique structure, with a triazine centre and three diphenylphosphines., makes it a highly sought-after material in  organic electronic devices.

Key Features of PO-T2T

  • Exciplex Forming Nature: One of the most important of PO-T2T is its ability to form exciplexes. This property is crucial for the development of advanced OLEDs, especially in the realm of TADF (Thermally Activated Delayed Fluorescence) OLEDs.
  • Electron Transport Layer (ETL) Material: Due to its electron-deficient nature, PO-T2T is extensively used as a material in electron transport layers. This systematic approach ensures that OLEDs function efficiently and have longer lifetimes.
  • Enhanced OLED Performance: When combined with other electron donating materials, PO-T2T has been proven to improve key parameters in OLEDs. This includes extending the device’s lifetime and reducing the driving voltage, leading to more energy-efficient OLED devices.

The Role of PO-T2T in Modern OLEDs

Modern OLEDs demand materials that can deliver high efficiency, longevity, and reduced energy consumption. PO-T2T, with its unique properties, fits perfectly. Its ability to form exciplexes means that it can facilitate the transfer of energy in OLEDs, leading to brighter and more vibrant displays. Moreover, its role as an ETL material ensures that the OLEDs remain stable and have a longer lifetime.


The world of OLEDs is vast, and the demand for efficient, long-lasting materials is ever-growing. PO-T2T, with its unique properties and capabilities, is set to play a pivotal role in the future of OLED technology. As research continues and technology evolves, it’s clear that PO-T2T  will find more and more applications in organic electronic devices.

Any questions? Contact us!