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General information

  • Name: Tris-PCz
  • Full name: 9-Phenyl-3,6-bis(9-phenyl-9H-carbazol-3-yl)-9H-carbazole
  • CAS number: 1141757-83-6
  • Chemical formula: C54H35N3
  • Molecular weight: 725.28 g/mol
  • Absorption: λmax = 305 nm in DCM
  • Photoluminescence: λmax = 415 nm in DCM
  • HOMO/LUMO: HOMO = 5.6 eV, LUMO = 2.1 eV
  • Synonyms: 9,9',9''-Triphenyl-9H,9'H,9''H-3,3':6',3''-tercarbazole
  • Classification: Organic light-emitting didoes, Hole transport layer materials (HTL), Exciton blocking layer materials, Host materials, TADF materials
  • Purity: Sublimed: >99.0% (HPLC)
  • Melting point: TGA: >270 °C
  • Appearance: White powder/crystals

Tris-PCz: Pioneering the Future of OLED Technology

The world of Organic Light-Emitting Diodes (OLEDs) is in a constant state of evolution. Among the various materials that contribute to this rapid advancement, Tris-PCz stands out as a highly promising component in the OLED stack.

Understanding Tris-PCz

Tris-PCz, fully known as 9-Phenyl-3,6-bis(9-phenyl-9H-carbazol-3-yl)-9H-carbazole, is a specialized compound with a unique molecular structure – it has a tri-carbazole back-boned structure. Its multifaceted applications make it a highly sought-after material in organic electronic devices.

Key Features of Tris-PCz

  • Exciplex Forming Nature: One of the most remarkable features of Tris-PCz is its ability to form exciplexes. This property is crucial for the development of advanced OLEDs, particularly in the realm of Thermally Activated Delayed Fluorescence (TADF) OLEDs.
  • Hole Transport Layer Material: Tris-PCz serves as an effective material in Hole Transport Layers (HTL), ensuring a balanced and efficient flow of electrical charges within OLED devices.
  • Exciton Blocking Capabilities: The compound also acts as an Exciton Blocking Layer material, preventing the recombination of electrons and holes, thereby enhancing the operational lifetime of OLEDs.
  • Versatile Host Material: Tris-PCz is a versatile host material suitable for various types of OLEDs, including those that utilize TADF mechanisms.

The Role of Tris-PCz in Modern OLEDs

Today’s OLED devices require materials that offer high efficiency, durability, and low energy consumption. Tris-PCz, with its unique properties, is perfectly aligned with these needs. Its role in facilitating efficient charge transport and exciplex formation contributes to brighter, more vibrant displays. Moreover, its versatility as a host material opens up new avenues for OLED technology.


The OLED industry is continuously expanding, and the demand for efficient, long-lasting materials is ever-increasing. Tris-PCz, with its unique properties and capabilities, is poised to play a significant role in shaping the future of OLED technology. As research progresses and technology advances, it’s evident that Tris-PCz will find an expanding range of applications in organic electronic devices.

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