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All Semiconducting Molecules, Sublimed Materials, TADF Materials, Transport Layer Materials

Product Code M2091A1-500mg
Price $288 ex. VAT

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ZADN, 2-[4-(9,10-Di-naphthalen-2-yl-anthracen-2-yl)-phenyl]-1-phenyl-1H-benzoimidazole, is a family member of anthracene. It has been extensively explored and tested for applications in photochromic chemistry and OLED devices.

ZADN is widely used as an electron-transport layer material (ETL) and hole-blocking layer material (HBL) for organic electronic devices.

General Information

CAS number 561064-11-7
Chemical formula C53H34N2
Molecular weight 698.85 g/mol
Absorption No data available
Fluorescence No data available
HOMO/LUMO HOMO = -6.0 eV, LUMO = -2.9 eV [1]
Synonyms 2-[4-(9,10-Di-naphthalen-2-yl-anthracen-2-yl)-phenyl]-1-phenyl-1H-benzoimidazole
Classification / Family Electron transport layer (ETL) materials, Solution-processed OLED materials, TADF materials, PHOLEDs, OPV, Sublimed materials

Product Details

Purity >99.0% (sublimed)
Melting Point No data available
Colour Light yellow powder

*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

ZADN chemical structure, 561064-11-7
Chemical structure of 2-[4-(9,10-Di-naphthalen-2-yl-anthracen-2-yl)-phenyl]-1-phenyl-1H-benzoimidazole (ZADN)

Device Structure(s)

Device structure ITO (50  nm)/DNTPD (40 nm)/BPBPA (10 nm)/PCZAC (10 nm)/mCBP:DBFTrz:Ir(CNpi)3 (50:50:5) (30 nm)/DBFTrz (5  nm)/ZADN (20 nm)/LiF (1.5 nm)/Al (200 nm) [2]
Colour Blue blue light emitting device
Max. Current Efficiency 34.8 cd/A
Max. Power Efficiency 23.2 lm W1
Max. EQE 18.0%
Device structure ITO (50 nm)/DNTPD (40 nm)/BPBPA (10 nm)/PCZAC (10  nm)/mCBP:DBFTrz:(Ir(ppy)2acac (50:50:5) (30 nm)/DBFTrz  (5 nm)/ZADN (20 nm)/LiF (1.5 nm)/Al (200 nm) [2]
Colour Green green light emitting device
Max. Current Efficiency 66.2 cd/A
Max. Power Efficiency 47.6 lm W1
Max. EQE 18.1%
Device structure ITO (50 nm)/DNTPD (40 nm)/BPBPA (10 nm)/PCZAC (10 nm)/mCBP:DBFTrz: Ir(mphmq)2tmd (50:50:5) (30  nm)/DBFTrz (5 nm)/ZADN (20 nm)/LiF (1.5 nm)/Al (200 nm) [2]
Colour Red red light emitting device
Max. Current Efficiency 30.6cd/A
Max. Power Efficiency 23.4 lm W1  
Max. EQE 21.2%


Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2091A1 500 mg £230
Sublimed (>99.0% purity) M2091A1 1 g £370

MSDS Documentation


Literature and Reviews

  1. Triplet emitter doped exciton harvesting layer for improved efficiency and long lifetime in blue phosphorescent organic light-emitting diodes, J. Choi et al., Syn. Met., 220, 573-577 (2016);
  2. Electroplex as a New Concept of Universal Host for Improved Efficiency and Lifetime in Red, Yellow, Green, and Blue Phosphorescent Organic Light-Emitting Diodes, W. Song et al., Adv. Sci., 5, 1700608 (2018); DOI: 10.1002/advs.201700608
  3. Lifetime extension of blue phosphorescent organic light-emitting diodes by suppressing triplet-polaron annihilation using a triplet emitter doped hole transport layer, W. Song et al., Org. Electronics 49, 152-156 (2017);
  4. Pure Hydrocarbon Hosts for ≈100% Exciton Harvesting in Both Phosphorescent and Fluorescent Light‐Emitting Devices, L. Cui et al., Adv. Mater., 27, 4213–4217 (2015); DOI: 10.1002/adma.201501376.

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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