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All Semiconducting Molecules, OLED Host Materials, Sublimed Materials, TADF Materials

Product Code M2290A1-100mg
Price $275 ex. VAT

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FATPA, host material for green PhOLED devices

Exhibits excellent thermal and morphological stability

FATPA, namely 4,4,8,8,12,12-Hexa-p-tolyl-4H-8H-12H-12C-aza-dibenzo[cd,mn]pyrene, is a fully diarylmethylene-bridged triphenylamine (TPA) derivative with six methylphenyl side arms. FATPA has an almost planar triphenylamine core with nitrogen sitting right in the centre of carbon and hydrogen structure. With a Tg of 178 °C, FATPA exhibits excellent thermal and morphological stability.

Green phosphorescent OLED device with the novel FATPA as host material and Ir(ppy)3 as triplet emitter shows a maximum current efficiency of 83.5 cd/A and a maximum power efficiency of 71.4 lm/W [1]

General Information

CAS number 1131007-94-7
Chemical formula C63H51N
Molecular weight 822.09 g/mol
Absorption λmax 311 nm (Toluene)
Photoluminescence λem 375 nm (Toluene)
HOMO/LUMO HOMO = 5.22 eV, LUMO = 1.62 eV; ET = 2.78 eV [1]
Chemical name 4,4,8,8,12,12-Hexa-p-tolyl-4H-8H-12H-12C-aza-dibenzo[cd,mn]pyrene
Synonyms 4,4,8,8,12,12-Hexakis(4-methylphenyl)-4H,8H,12H-benzo[1,9]quinolizino[3,4,5,6,7-defg]acridine
Classification / Family Triphenylamine derivatives, Phosphorescent host materials, Sublimed materials, Semiconducting small molecules

Product Details

Purity Sublimed >99.0% (HPLC)
Melting point Tg = 178°C (lit.)
Appearance White powder/crystals

*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the sublimed materials for OLED devices page.

Chemical Structure

FATPA chemical structure
Chemical structure of 4,4,8,8,12,12-Hexa-p-tolyl-4H-8H-12H-12C-aza-dibenzo[cd,mn]pyrene (FATPA).

Device Structure(s)

Device structure ITO/MoO3 (10 nm)/NPB (80 nm)/mCP (5 nm)/FATPA:Ir(ppy)3 (20 nm)/TAZ (40 nm)/LiF (1 nm)/Al (100 nm) [1]
Colour green light emitting device Green
Max. Current Efficiency 83.5 cd/A
Max. EQE 23.4%
Max. Power Efficiency 71.4 Im/W


Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2290A1 100 mg £220
Sublimed (>99.0% purity) M2290A1 250 mg £440
Sublimed (>99.0% purity) M2290A1 500 mg £760
Sublimed (>99.0% purity) M2290A1 1 g £1300

MSDS Documentation


Literature and Reviews

  1. A Fully Diarylmethylene-Bridged Triphenylamine Derivative as Novel Host for Highly Efficient Green Phosphorescent OLEDs, Z. Jiang et al., Org. Lett., 11(7), 1503-6 (2009);DOI:10.1021/ol9001152.
  2. Functionalization of phosphorescent emitters and their host materials by main-group elements for phosphorescent organic light-emitting devices, X. Yang et al., Chem. Soc. Rev., 44, 8484-8575 (2015); DOI: 10.1039/C5CS00424A.
  3. Solution-Processed Undoped Deep-Blue Organic Light-Emitting Diodes Based on Starburst Oligofluorenes with a Planar Triphenylamine Core, C. Liu et al., Chem. Eur. J. 18 (22), 6928-6934 (2012); DOI: 10.1002/chem.201200062.
  4. Leakage-free solution-processed organic lightemitting diode using a ternary host with single-diode emission area up to 6 × 11.5 cm2, S-Y. Liao et al., RSC Adv., 9, 10584 (2019); DOI: 10.1039/c8ra10363.

To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, military, pharmaceuticals, cosmetics, food, or commercial applications.

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