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.
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 |
HOMO/LUMO | HOMO 5.6 eV, LUMO 3.0 eV |
Synonyms |
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Classification / Family | Organometallic complex, Green emitter, Phosphorescence dopant OLEDs, Sublimed materials |
Product Details
Purity | >99.0% (sublimed) >98.0% (unsublimed) |
Melting point | 451 °C |
Colour | Yellow powder |
*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials for OLED devices page.
Chemical Structure
Device Structure(s)
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 |
Max EQE | (12.0±0.6)% |
Max. Powder Efficiency | (45±2) lm W−1 |
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 |
Max EQE | 8% |
Max. Current Efficiency | 28 cd/A |
Max. Powder Efficiency | 31 lm W−1 |
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 |
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 |
Max. Luminance | 27,524 cd/m2 |
Max. Current Efficiency | 71.2 cd/A |
Device structure | ITO/NPD/5%BCzVBi:CBP/CBP/4%PQIr*:CBP/5%Ir(ppy)3:CBP/CBP/5%BCzVBi:CBP/ LiF/Al [8] |
Colour | White |
Max EQE | 11.0 ± 0.3% |
Max. Power Efficiency | 22.1 ± 0.3 lm W−1 |
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 |
Luminance@15 V | 1,320 cd/m2 |
Power Efficiency@14 V | 56.6 lm W−1 |
Current Efficiency@14 V | 23.17 cd/A |
*For chemical structure information please refer to the cited references
Characterisations
Pricing
Grade | Order Code | Quantity | Price |
Sublimed (>99.5% purity) | M481 | 100 mg | £158.00 |
Unsublimed (>98.0% purity) | M482 | 250 mg | £166.00 |
Sublimed (>99.5% purity) | M481 | 250 mg | £298.00 |
Unsublimed (>98.0% purity) | M482 | 500 mg | £263.00 |
Sublimed (>99.5% purity) | M481 | 500 mg | £487.00 |
MSDS Documentation
Ir(ppy)3 MSDS sheet
Literature and Reviews
- 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.
- The Triplet State of fac-Ir(ppy)3, T. Hofbeck et al., Inorg. Chem., 49 (20), 9290–9299 (2010), DOI: 10.1021/ic100872w.
- 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.
- 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.
- Very high-efficiency green organic light-emitting devices based on electrophosphorescence, M. A. Baldo et al., Appl. Phys. Lett. 75, 4 (1999); http://dx.doi.org/10.1063/1.124258.
- 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.
- 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.
- 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.
- Novel organic electron injection layer for efficient and stable organic light emitting diodes, R. Grover et al., J. Luminescence, 146, 53–56 (2014). http://dx.doi.org/10.1016/j.jlumin.2013.09.004.
- 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.
- 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).
- 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); http://dx.doi.org/10.1063/1.1812378.
To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.