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  • 694924 - Tris[2-phenylpyridinato-C2,N]iridium(III)

694924 Sigma-Aldrich


sublimed grade

Synonym: Ir(ppy)3, Iridium, tris[2-(2-pyridinyl-κN)phenyl-κC]

  • CAS Number 94928-86-6

  • Empirical Formula (Hill Notation) C33H24IrN3

  • Molecular Weight 654.78

  •  MDL number MFCD12022527

  •  PubChem Substance ID 329761700

  •  NACRES NA.23



Related Categories Light Emitters and Dopants, Materials Science, OLED and PLED Materials, Organic and Printed Electronics, Sublimed Materials More...
Quality Level   100
grade   sublimed grade
loss   0.5% loss on heating, 359°C (typical, TGA)
transition temp   transition temp 437.6 °C (typical, DSC)
λmax   282 nm
fluorescence   λex 305 nm; λem 507 nm in chloroform
Orbital energy   HOMO 5.6 eV 
  LUMO 3 eV 
OLED Device Performance   ITO/HMPD/TAZ:Ir(ppy)3 (7%)/Alq3/Al:Li
• Color: green
• Max. Luminance: 4000 Cd/m2
• Max. EQE: 15 %
  ITO/NPD/CBP:Ir(ppy)3 (6%)/Alq3/Mg:Ag
• Color: green
• Max. Luminance: 100000 Cd/m2
• Max. EQE: 8 %
• Turn-On Voltage: 4.3 V
  ITO/NPD/TCTA/BCPO:Ir(ppy)3 (7-8%)/BCP/Alq3/LiF/Al
• Color: green
• Max. Luminance: 207839 Cd/m2
• Max. EQE: 21.6 %
• Turn-On Voltage: 2.1 V
• Color: green
• Max. Luminance: 300000 Cd/m2
• Max. EQE: 19 %
• Turn-On Voltage: 2.6 V
SMILES string   c1ccc(nc1)-c2ccccc2[Ir](c3ccccc3-c4ccccn4)c5ccccc5-c6ccccn6
InChI   1S/3C11H8N.Ir/c3*1-2-6-10(7-3-1)11-8-4-5-9-12-11;/h3*1-6,8-9H;



250 mg in glass insert


OLED triplet emitter (green).

TGA/DSC Lot specific traces available upon request

Safety & Documentation

Safety Information

Personal Protective Equipment 
NONH for all modes of transport
WGK Germany 
Flash Point(F) 
Not applicable
Flash Point(C) 
Not applicable
Protocols & Articles


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A Joint Theoretical and Experimental Study

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Plexcore® Organic Conductive Inks

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Keywords: Degradations, Infrared spectroscopy, Polymerization reactions

Polymer-based Materials for Printed Electronics: Enabling High Efficiency Solar Power and Lighting

The soaring global demand for energy has created an urgent need for new energy sources that are both cost-competitive and eco-friendly. Renewable energy technology, such as solar power and energy eff...
Ritesh Tipnis*, Darin Laird, Mathew Mathai
Material Matters 2008, 3.4, 92.
Keywords: Absorption, Degradations, Deposition, Electronics, Environmental, Infrared spectroscopy, Organic electronics, PAGE, Photovoltaics, Polymerization reactions, Printed electronics, Recombination, Reductions, Renewable energy, Semiconductor, Separation, Solar cells, Spin coating

Sublimed Materials for Organic Electronic Devices

Organic field-effect transistors (OFETs) have attracted considerable attention due to their potential for realizing large-area, mechanically flexible, lightweight and low-cost devices. One of the key...
Ajay Virkar, Zhenan Bao

Department of Chemical Engineering,
Stauffer III, 381 North-South Mall,
Stanford University, Stanford, CA 94305-5025
Keywords: Calorimetry, Electronics, Evaporation, High performance liquid chromatography, Organic electronics, Purification, Semiconductor, Sublimation

Peer-Reviewed Papers


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