Ir(ppy)3

CAS Number 94928-86-6

Dopant Materials, High Purity Sublimed Materials, Semiconducting Molecules

Ir(ppy)3, one of the most successful green-triplet emitters for OLED devices

High quantum yields and thermal stability

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	λ_max 282, 377 nm in THF
Fluorescence	λ_em 513 nm in THF
HOMO/LUMO	HOMO 5.6 eV, LUMO 3.0 eV
Synonyms	Tris[2-phenylpyridine]iridium(III) Tris(2-phenylpyridinato)iridium(III) Tris[2-phenylpyridine-c2,n]iridium(III)
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

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.

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

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

Pricing

Grade	Order Code	Quantity	Price
Sublimed (>99.5% purity)	M481	100 mg	£200
Unsublimed (>98.0% purity)	M482	250 mg	£240
Sublimed (>99.5% purity)	M481	250 mg	£400
Unsublimed (>98.0% purity)	M482	500 mg	£400
Sublimed (>99.5% purity)	M481	500 mg	£660
Unsublimed (>98.0% purity)	M482	1 g	£680
Sublimed (>99.5% purity)	M481	1 g	£1200

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.