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General information

  • Name: Ir(ppy)2(acac)
  • Full name: Bis[2-(2-pyridinyl-N)phenyl-C](acetylacetonato)iridium(III)
  • CAS number: 337526-85-9
  • Chemical formula: C27H23IrN2O2
  • Molecular weight: 599.70 g/mol
  • Absorption: λmax = 259 in THF
  • Photoluminescence: λmax = 314 in THF
  • HOMO/LUMO: HOMO = 5.6 eV, LUMO = 3.0 eV
  • Synonyms: (ppy)2Ir(acac), Bis[2-(2-pyridinyl-N)phenyl-C](2,4-pentanedionato-O2,O4)iridium(III)
  • Classification: Organic light-emitting diodes, Polymer light-emitting diodes, Emmiting layer materials (EML), Green phosphorescent dopant materials
  • Purity: Sublimed: >99%
  • Melting point: 349 - 356 °C
  • Appearance: Yellow powder/crystals

Ir(ppy)2(acac): Premier Green Phosphorescent Dopant for OLED Applications

Ir(ppy)2(acac), or Bis2-(2-pyridinyl-N)phenyl-Ciridium(III), with CAS number 337526-85-9, represents a cornerstone in the development of organic and polymer light-emitting diodes (OLEDs). As a green phosphorescent dopant material, this compound is integral to emitting layer materials (EML), significantly enhancing the luminance and efficiency of OLED devices. With a chemical formula of C27H23IrN2O2 and sublimation purity exceeding 99%, Ir(ppy)2(acac) is tailored for high-performance applications, evidenced by its balanced HOMO and LUMO energy levels. Noctiluca’s commitment to advancing OLED technology is underscored by our provision of Ir(ppy)2(acac), aiming to meet the dynamic needs of the industry.

The Molecular Structure and Properties of Ir(ppy)2(acac)

Ir(ppy)2(acac) features a unique molecular configuration that optimizes its function as a green phosphorescent dopant. The structure incorporates iridium(III) coordinated with two phenylpyridine (ppy) ligands and an acetylacetonate (acac) ligand, facilitating efficient energy transfer and strong green emission. This configuration enhances the material’s photophysical properties, making it ideal for use in a variety of OLED architectures, from small molecules to polymer-based systems. The precise energy levels, with a HOMO of 5.6 eV and a LUMO of 3.0 eV, ensure compatibility with a wide range of host materials, further solidifying its role in developing energy-efficient OLEDs.

Key Features of Ir(ppy)2(acac)

  • Exceptional Green Emission: Ir(ppy)2(acac) is acclaimed for its exceptional capability to emit vivid green light, a critical attribute for fabricating OLED devices that demand high color purity and luminance. This material’s phosphorescent properties ensure that it can produce a broad spectrum of green hues, enhancing the visual experience of displays and lighting applications. The intensity and quality of the green emission from Ir(ppy)2(acac) not only meet but surpass industry standards for color accuracy and brightness, setting a new precedent for the capabilities of OLED technology. Noctiluca’s provision of Ir(ppy)2(acac) as a green dopant material reflects our commitment to enabling our partners to develop OLED displays with unparalleled clarity, vibrancy, and efficiency.
  • Enhanced Device Efficiency: Employing Ir(ppy)2(acac) as a green phosphorescent dopant material offers a substantial advancement in the energy efficiency of OLED devices. By facilitating electron-hole recombination through its phosphorescent properties, Ir(ppy)2(acac) allows for nearly 100% quantum efficiency in light emission. This process significantly enhances the overall luminous efficiency of OLEDs, reducing energy consumption while maximizing light output. The integration of Ir(ppy)2(acac) into OLED architectures results in devices that not only operate at lower power levels but also exhibit superior brightness and longevity. As a leading provider of advanced OLED materials, Noctiluca ensures that Ir(ppy)2(acac) empowers the next generation of energy-efficient OLED technologies, supporting the industry’s move towards more sustainable and cost-effective lighting and display solutions.
  • Advanced Stability and Longevity: Ir(ppy)2(acac) distinguishes itself not only through its phosphorescent properties and efficiency but also through its exceptional stability and longevity within OLED devices. This compound’s robust molecular structure ensures it remains stable under the high-energy conditions of OLED operation, significantly reducing degradation rates and extending the operational life of the devices. The enduring performance of Ir(ppy)2(acac) contributes to the reliability and sustainability of OLED technology, exemplifying Noctiluca’s dedication to delivering materials that support the long-term success of our partners’ innovative products.

The Role of Ir(ppy)2(acac) in Advanced OLEDs

Ir(ppy)2(acac) plays a transformative role in OLED technology, enabling the fabrication of displays and lighting solutions that combine aesthetic brilliance with energy efficiency. Its application as a green dopant material is crucial in achieving high luminance, extending device lifespan, and reducing power consumption, marking a significant advancement in the quest for sustainable display technologies.


Ir(ppy)2(acac) exemplifies Noctiluca’s prominence in the realm of OLED material science, delivering sophisticated solutions to meet the escalating requirements of the OLED sector. Our capability in supplying premium Ir(ppy)2(acac) is complemented by an extensive portfolio of services as a contract research organization (CRO), solidifying our position as a vanguard in this specialized field. Through our commitment to the deployment of advanced materials such as Ir(ppy)2(acac), we are at the forefront of advancing display technology. This ensures our partners excel in fabricating devices that stand out for their superior performance, exceptional visual quality, and commitment to sustainability. As a distinguished CRO company, Noctiluca is dedicated to fostering innovation that propels our partners towards achieving benchmarks in efficiency, aesthetics, and environmental stewardship within the OLED industry.

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