| Identification | Back Directory | [Name]
Acetylacetonatobis(2-phenylpyridine)iridium | [CAS]
337526-85-9 | [Synonyms]
(ppy)2Ir(acac)
Ir(ppy)2(acac)
Acetylacetonatobis(2
fac-tris(2-(2-pyridinyl)phenyl)iridium
Acetylacetonatobis(2-phenylpyridine)iridium
Bis(2-phenylpyridine)(acetylacetonate)iridium
Bis(2-phenylpyridine)(Acetylacetonato)iridium(III)
Bis(2-phenylpyridine) (acetylacetonate) iridium(III)
Bis(2-phenylpyridine-C2,N')(acetylacetonato)IridiuM (III)
Bis[2-(2-pyridinyl-N)phenyl-C](acetylacetonato)iridiuM(III)
IridiuM(III) bis(2-phenylpyridinato-N,C2') (acetylacetonate)
Ir(ppy)2(acac) , Acetylacetonatobis(2-phenylpyridine)iridiuM
Bis(2-phenylpyridine)(acetylacetonate)iridiuM(III)/ Ir(ppy)2(acac)
Bis[2-(2-pyridinyl-N)phenyl-C](2,4-pentanedionato-O2,O4)iridium(III)
Iridium,(2,4-pentanedionato-κO,κO')bis[2-(2-pyridinyl-κN)phenyl-κC]-,
Bis(2-phenylpyridine-C2,N′ )(acetylacetonato)iridium(III) Ir(ppy)2(acac) | [EINECS(EC#)]
1312995-182-4 | [Molecular Formula]
C27H23IrN2O2 | [MDL Number]
MFCD12022553 | [MOL File]
337526-85-9.mol | [Molecular Weight]
599.711 |
| Chemical Properties | Back Directory | [Melting point ]
349-356°C | [form ]
powder | [color ]
Light yellow to Yellow to Orange | [λmax]
261 nm in dichloromethane | [InChIKey]
QISLNNOQKUEVTI-DVACKJPTSA-M | [Absorption]
λmax?259 in THF | [Description]
Like?Ir(ppy)3, bis[2-(2-pyridinyl-N)phenyl-C](acetylacetonato)iridium(III), or?Ir(ppy)2(acac), is one of the most studied OLED materials due to its high quantum yields. When doped into 3,5-Diphenyl-4-(1-naphthyl)-1H-1,2,4-triazole (TAZ), very high external quantum efficiencies of (19.06 ± 1.0%) and luminous power efficiencies of 60±5 lm/W were achieved. This was attributed to the nearly 100% internal phosphorescence efficiency of Ir(ppy)2(acac), coupled with balanced hole and electron injection, and triplet exciton confinement within the light-emitting layer. | [Odor]
Yellow powder/crystals |
| Questions And Answer | Back Directory | [Applications]
Like Ir(ppy)3, bis[2-(2-pyridinyl-N)phenyl-C](acetylacetonato)iridium(III), or Ir(ppy)2(acac), is one of the most studied OLED materials due to its high quantum yields. When doped into 3,5-Diphenyl-4-(1-naphthyl)-1H-1,2,4-triazole (TAZ), very high external quantum efficiencies of (19.06 ± 1.0%) and luminous power efficiencies of 60±5 lm/W were achieved. This was attributed to the nearly 100% internal phosphorescence efficiency of Ir(ppy)2(acac), coupled with balanced hole and electron injection, and triplet exciton confinement within the light-emitting layer.
Ir(ppy)2(acac) demonstrated higher external quantum efficiency when compared with Ir(ppy)3. It was suggested that Ir(ppy)2(acac) molecules preferentially align so that their transition dipole moment is parallel to the substrate, whereas the orientation of Ir(ppy)3 molecules is nearly isotropic.
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| Hazard Information | Back Directory | [Uses]
(ppy)2Ir(acac) used in green phosphorescent OLED devices as dopant/emitter achieved high brightness of 130800 cd m_2 at a current density of 1550 mA cm_2 (13 V), and high quantum efficiency (15~16%). |
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