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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

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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 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, 3446-3455 null
Indium-tin-oxide-free tris(8-hydroxyquinoline) Al organic light-emitting diodes with 80% enhanced power efficiency
Cai, M.; et al.
Applied Physics Letters, 99, 153303-153303 (2011)
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