Order Code: M481
MSDS sheet


(excluding Taxes)



 Grade Order Code Quantity Price
Sublimed (>99.5% purity) M481 100 mg £158
Unsublimed (>99.5% purity) M482 250 mg
Sublimed (>99.5% purity) M481 250 mg £329
Unsublimed (>99.5% purity) M482 500 mg £263

General Information

CAS number 94928-86-6
Chemical formula C33H24IrN3
Molecular weight 654.78 g/mol
Absorption λmax 282, 377 nm in THF
Fluorescence λem 513 nm in THF
  • Tris[2-phenylpyridine]iridium(III)
  • Tris(2-phenylpyridinato)iridium(III)
  • Tris[2-phenylpyridine-c2,n]iridium(III)
  • Tris(2-phenylpyridine)iridium(III)
Classification / Family Organometallic complex, Green emitter, Phosphorescence dopant OLEDs, Sublimed materials


Product Details


 >99.5% (sublimed)

>99.5% (unsublimed)

Melting point 451 °C
Colour Yellow powder

 *Sublimation is a technique used to obtain ultra pure-grade chemicals by removing trace metals and inorganic impurities. For more details about sublimation, please refer to sublimed materials for OLEDs and perovskites and our collection of sublimed materials.


Chemical Structure

 Irppy3 chemical structure
Chemical Structure of tris(2-phenylpyridine)iridium [Ir(ppy)3]; CAS No. 94928-86-6; Chemical Formula C33H24IrN3



Tris(2-phenylpyridine)iridium(III), Ir(ppy)3, is used widely in organic light-emitting diodes (OLEDs) due to its high quantum yields and thermal stability.

Utilising all of its singlet and triplet excitons for the emission, this green light emitting Ir(ppy)3 exhibits a very bright phosphorescence with an internal quantum yield of almost 100% [1, 2, 3]. It is one of the most successful green-triplet emitters in the rapidly developing field of OLED display technology.


Device structure                                            ITO/α-NPD* (50 nm)/7%-Ir(ppy)3:CBP (20 nm)/BCP (10 nm)/tris(8-hydroxyquinoline)aluminum (Alq3) (40 nm)/Mg–Ag (100 nm)/Ag (20 nm)  [4]
Colour Green  green
Max EQE (12.0±0.6)%
Max. Powder Efficiency (45±2) lm W1


Device structure                                            ITO/α-NPD* (40 nm)/6%-Ir(ppy)3:CBP (20 nm)/BCP (10 nm)/tris(8-hydroxyquinoline)aluminum (Alq3) (20 nm)/Mg–Ag (100 nm)/Ag (20 nm)  [5]
Colour Green  green
Max EQE 8%
Max. Current Efficiency 28 cd/A
Max. Powder Efficiency 31 lm W1


Device structure ITO/PEDOT:PSS (50 nm)/poly-TCZ (35 nm)/1*:Ir(ppy)3 (94:6 wt%)(20 nm)/TAZ (50 nm)/LiF (2.5 nm)/Al (40 nm)/Ag (100 nm) [6]
Colour Blue  blue
Max. Luminance 47,000 cd/m2
Max. Current Efficiency 81.1 cd/A
Max. EQE 25.2%
Max. Power Efficiency 46.8 lm W−1 


Device structure ITO/MoO3 (3 nm)/CBP: 20 wt% Ir(ppy)3: 4 wt% FIrpic (30 nm)/TAZ (50 nm) [7]
Colour Green  green
Max. Luminance 27,524 cd/m2
Max. Current Efficiency 71.2 cd/A


Device structure 


LiF/Al [8]

Colour  White  white
Max EQE 11.0 ± 0.3%
Max. Power Efficiency 22.1 ± 0.3lm W1


Device structure                                            ITO/0.4 wt% F4TCNQ doped α NPD (30 nm)/ 5 wt% Ir (ppy)3 doped CBP (50 nm)/BPhen (30 nm)/20 wt% TCNQ mixed BPhen (1.5 nm)/Al [9]
Colour Green  green
Luminance@15 V 1,320 cd/m2 
Power Efficiency@14 V 56.6 lm W1  
Current Efficiency@14 V 23.17 cd/A

*For chemical structure information please refer to the cited references



HPLC trace of tris(2-phenylpyridine)iridium [Ir(ppy)3]

Literature and Reviews

  1. Absorption and emission spectroscopic characterization of Ir(ppy)3, W. Holzer et al., Chem. Phys., 308(1-2), 93-102 (2005), doi:10.1016/j.chemphys.2004.07.051.
  2. The Triplet State of fac-Ir(ppy)3, T. Hofbeck et al., Inorg. Chem., 49 (20), 9290–9299 (2010), DOI: 10.1021/ic100872w.
  3. High-efficiency fluorescent organic light-emitting devices using a phosphorescent sensitizer, M. A. Baldo et al., Nature 403, 750-753 (2000) | doi:10.1038/35001541.
  4. Efficient electrophosphorescence using a doped ambipolar conductive molecular organic thin film, C. Adachi et aL., Org. Electronics, 2(1), 37-43 (2001), doi:10.1016/S1566-1199(01)00010-6.
  5. Very high-efficiency green organic light-emitting devices based on electrophosphorescence, M. A. Baldo et al., Appl. Phys. Lett. 75, 4 (1999);
  6. Efficient blue-emitting electrophosphorescent organic light-emitting diodes using 2-(3,5-di(carbazol-9-yl)-phenyl)-5-phenyl-1,3,4-oxadiazole as an ambipolar host, Y. Zhang et al., RSC Adv., 3, 23514 (2013). DOI: 10.1039/c3ra43720e.
  7. Simplified phosphorescent organic light-emitting devices using heavy doping with an Ir complex as an emitter, Y. Miao et al., RSC Adv., 5, 4261 (2015). DOI: 10.1039/c4ra13308k.
  8. Management of singlet and triplet excitons for efficient white organic light-emitting devices, Y. Sun, et al, Nature 440, 908-912 (2006), doi:10.1038/nature04645.
  9. Novel organic electron injection layer for efficient and stable organic light emitting diodes, R. Grover et al., J. Luminescence, 146, 53–56 (2014).
  10. Upconverted Emission from Pyrene and Di-tert-butylpyrene Using Ir(ppy)3 as Triplet Sensitizer, W. Zhao et al., Phys. Chem. A, 110 (40), 11440–11445 (2006), DOI: 10.1021/jp064261s.
  11. High-efficiency organic electrophosphorescent devices with tri(2-phenylpyridine)iridium doped into electron-transporting materials, C. Adachi et al., Appl. Phys. Lett., 77 (6), 904-906 (2000).
  12. High-efficiency and low-voltage p‐i‐n electrophosphorescent organic light-emitting diodes with double-emission layers, G. He et al., Appl. Phys. Lett. 85, 3911 (2004);