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  • 697737 - Tris-(8-hydroxyquinoline)aluminum


697737 Aldrich


sublimed grade, 99.995% trace metals basis

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



Related Categories Electron Transport and Hole Blocking Materials, Fluorescent Host Materials, Host Materials, Light Emitters and Dopants, Materials Science,
grade   sublimed grade
assay   99.995% trace metals basis
loss   0.5 wt. % loss on heating, 332°C (typical, TGA)
mp   >300 °C(lit.)
  411 °C (DSC)
absorption   λmax 259 nm
fluorescence   λex 390 nm; λem 519 nm
Orbital energy   HOMO 5.8 eV 
  LUMO 3.1 eV 
OLED Device Performance   ITO/MoO3/NPD/Alq3/BPhen/LiF/Al1
• Color: green
• Max. Luminance: 20000 Cd/m2
• Max. EQE: 1.2 %
• Turn-On Voltage: 2.8 V
• 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/Al3
• 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/Al3
• Color: green
• Max. Luminance: 207839 Cd/m2
• Max. EQE: 21.6 %
• Turn-On Voltage: 2.1 V
• Color: blue
• Max. Luminance: 9100 Cd/m2
• Max. EQE: 2.5 %
• Turn-On Voltage: 3.2 V



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

Sublimed grade for organic electronic device applications.

General description

TGA/DSC Lot specific traces available upon request


1, 5 g in glass bottle

Price and Availability


Safety & Documentation

Safety Information

GHS07  GHS07
Signal word 
Hazard statements 
Precautionary statements 
Personal Protective Equipment 
WGK Germany 

Protocols & Articles


Materials Design Concepts for Efficient Blue OLEDs:
A Joint Theoretical and Experimental Study

Since their discovery,1 organic light emitting devices (OLEDs) have evolved from a scientific curiosity into a technology with applications in flat panel displays and the potential to revolutionize t...
Evgueni Polikarpov, Asanga B. Padmaperuma
Keywords: Applications, Building blocks, Help, Materials Science, Methods, Purification, Reductions, Search, Support, Tools, Type

Polymer-based Materials for Printed Electronics: Enabling High Efficiency Solar Power and Lighting

The soaring global demand for energy has created an urgent need for new energy sources that are both cost-competitive and eco-friendly. Renewable energy technology, such as solar power and energy eff...
Ritesh Tipnis*, Darin Laird, Mathew Mathai
Material Matters 2008, 3.4, 92.
Keywords: Absorption, Applications, Degradations, Deposition, Electronics, Environmental, Help, Infrared spectroscopy, Organic electronics, PAGE, Photovoltaics, Polymerization reactions, Printed electronics, Recombination, Reductions, Renewable energy, Semiconductor, Separation, Solar cells, Spin coating, Support, Type

Silylethyne-Substituted Pentacenes

Research into the use of organic semiconductors in field-effect transistors (FETs) began in earnest in the mid-1990s,1 after early exciting results from vapor-deposited small molecule semiconductors....
John E. Anthony*
Material Matters 2009, 4.3, 58.
Keywords: Applications, Capabilities, Crystallization, Deposition, Electronics, Electrophoretic display, Evaporation, Organic electronics, Semiconductor, Separation, Solar cells, Substitutions

Peer-Reviewed Papers


Set your institution to view full text papers.

1. Indium-tin-oxide-free tris(8-hydroxyquinoline) Al organic light-emitting diodes with 80% enhanced power efficiency Cai, M.; et al. Appl. Phys. Lett. 99, 153303, (2011)

2. Very high-efficiency green organic light-emitting devices based on electrophosphorescence Forrest, S. R.; et al. Appl. Phys. Lett. 75, 4, (1999)

3. A Highly Efficient Universal Bipolar Host for Blue, Green, and Red Phosphorescent OLEDs Cheng, C.; et al. Adv. Mater. 22, 2468 - 2471, (2010)


4. A Novel Family of Boron-Containing Hole-Blocking Amorphous Molecular Materials for Blue- and Blue–Violet-Emitting Organic Electroluminescent Devices Kinoshita, M.; et al. Adv. Funct. Mater. 12, 780-786, (2002)

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. Adv. Funct. Mater. 19, 420-427, (2009)

Merck 14,370

Beil. 21,II,56

Structure Index 1, 413:A:2

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