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444561

Sigma-Aldrich

Tris-(8-hydroxyquinoline)aluminum

99.995% trace metals basis

Synonym(s):

8-Hydroxyquinoline aluminum salt, Alq3, Aluminum 8-hydroxyquinolinate, Aluminum oxinate, Tris-(8-hydroxyquinolinato)aluminum

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About This Item

Empirical Formula (Hill Notation):
C27H18AlN3O3
CAS Number:
2085-33-8
Molecular Weight:
459.43
EC Number:
218-227-0
MDL number:
MFCD00191693
UNSPSC Code:
12352103
PubChem Substance ID:
24868131
NACRES:
NA.23

Quality Level

100

Assay

99.995% trace metals basis

form

powder

mp

>300 °C (lit.)

Orbital energy

LUMO -3.3 eV 
LUMO 3.3 eV 

OLED Device Performance

ITO/MoO3/NPD/Alq3/BPhen/LiF/Al

  • Color: green
  • Max. Luminance: 20000 Cd/m2
  • Max. EQE: 1.2 %
  • Turn-On Voltage: 2.8 V

ITO/NPD/CBP:Ir(ppy)3/BCP/Alq3/Mg:Al
  • Color: green
  • Max. Luminance: 100000 Cd/m2
  • Max. EQE: 8 %
  • Turn-On Voltage: 4.3 V

ITO/NPD/TCTA/BCPO:Ir(piq)3 (7-8%)/BCP/Alq3/LiF/Al
  • Color: red
  • Max. Luminance: 24529 Cd/m2
  • Max. EQE: 17 %
  • Turn-On Voltage: 2.7 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

ITO/m-MTDATA/NPD/TTPhPhB/Alq3/LiF/Al
  • Color: blue
  • Max. Luminance: 9100 Cd/m2
  • Max. EQE: 2.5 %
  • Turn-On Voltage: 3.2 V

SMILES string

O([Al](Oc1cccc2cccnc12)Oc3cccc4cccnc34)c5cccc6cccnc56

InChI

1S/3C9H7NO.Al/c3*11-8-5-1-3-7-4-2-6-10-9(7)8;/h3*1-6,11H;/q;;;+3/p-3

InChI key

TVIVIEFSHFOWTE-UHFFFAOYSA-K

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General description

Alq3 crystals exist in two isomeric states, meridional and facial isomers. A third isomeric state ( γ) was studied by X-ray diffraction, the δ-Alq3 transforms into γ-form at ~180°C. Mechanism of the Alq3 phosphorescence has been studied.

Application

Key green-light emitting and electron transport material for OLEDs.

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCS7859
MKCP8843
MKCG7516
MKCF2342
MKBZ9872V

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Green- and blue-emitting tris(8-hydroxyquinoline) aluminum(III) (Alq3) crystalline polymorphs: Preparation and application to organic light-emitting diodes.
Fukushim T and Kaji H
Organic Electronics null
Triplet State Phosphorescence in Tris (8-hydroxyquinoline) Aluminum Light Emitting Diode Materials.
Perumal S, et al.
The Journal of Physical Chemistry C, 3446-3455 null
Green- and blue-emitting tris(8-hydroxyquinoline) aluminum(III) (Alq3) crystalline polymorphs: Preparation and application to organic light-emitting diodes.
Fukushim T and Kaji H
Organic Electronics, 2985-2990 null
Triplet State Phosphorescence in Tris (8-hydroxyquinoline) Aluminum Light Emitting Diode Materials.
Perumal S, et al.
The Journal of Physical Chemistry C null
Highly Efficient Red Phosphorescent OLEDs based on Non-Conjugated Silicon-Cored Spirobifluorene Derivative Doped with Ir-Complexes
Lyu, Y.; Kwak, J.; Jeon, W.; et al.
Advances in Functional Materials, 19, 420-427 (2009)
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