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Product Code M2423A1-LT-100mg
Price £450 ex. VAT

Blue Dopant Material with Boron-based Pseudo-pentacene Decorated with Triarylamines

High purity sublimed narrowband multiresonance thermally activated delayed fluorescent (MR-TADF) emitter for highly efficient OLEDs

v-DABNA (CAS number 2251782-13-3), N7,N7,N13,N13,5,9,11,15-octaphenyl-5,9,11,15-tetrahydro-5,9,11,15-tetraaza-19b,20b-diboradinaphtho[3,2,1-de:1',2',3'-jk]pentacene-7,13-diamine, can be considered as a structure having a pseudo-pentacene core symmetrically containing boron and nitrogen on the second and fourth rings, decorated with peripheral diphenylamines.

Thermally stable 2251782-13-3

Thermally stable

5% weight loss at 496° C in TGA

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narrow band emission v-DABNA

Provides narrow band emission

Full-width half-miximum of 14 nm in toluene

Excellent 2251782-13-3 performance

Excellent performance

Outstanding external quantum efficiency of 34.4%

v-DABNA has been demonstrated to be an efficient terminal emitter with high PLQY of about 100% and narrowband emission with an FWHM of 14 nm in toluene. Deep blue device based on v-DABNA as emitting layer shows outstanding EQE of 34.4% and very low efficiency roll-off of 5% at 100 cd m−2.

Comparing with t-DABNA, v-DABNA has relatively longer device lifetime albeit it has a red- shifted peak emission wavelength. v-DABNA has also a planar molecular π framework  which makes it prone to excimer formation via π-π intermolecular interaction. For this reason, low doping concentration as low as 1% should be used for higher color purity emission.

General Information

CAS number 2251782-13-3
Chemical formula C78H54B2N6
Molecular weight 1096.93 g/mol
Absorption* λmax 457 nm (in toluene)
Fluorescence λem 468 nm (in toluene)
HOMO/LUMO HOMO = 5.4 eV, LUMO = 2.8 eV (ES = 2.64 eV, ET = 2.62 eV)
Synonyms N7,N7,N13,N13,5,9,11,15-Octaphenyl-5,9,11,15-tetrahydro-5,9,11,15-tetraaza-19b,20b-diboradinaphtho[3,2,1-de:1',2',3'-jk]pentacene-7,13-diamine
Classification / Family Triarylamine derivatives, Blue dopant, Multiresonance thermally activated delayed fluorescent (MR-TADF), Narrowband TADF molecule, Sublimed materials.

Product Details

Purity Sublimed* >99% (HPLC)
Melting point TGA: Td = 496° C (5% weight loss) [5]
Appearance Yellow crystals/powder

* Sublimation is a technique used to obtain ultra pure-grade chemicals, see sublimed materials for OLED devices.

Chemical Structure

v-dabna - 2251782-13-3 - chemical structure
N7,N7,N13,N13,5,9,11,15-Octaphenyl-5,9,11,15-tetrahydro-5,9,11,15-tetraaza-19b,20b-diboradinaphtho[3,2,1-de:1',2',3'-jk]pentacene-7,13-diamine (v-DABNA) chemical structure, 2251782-13-3

Device Structure(s)

Device structure ITO/PEDOT:PSS/PYD2:10 wt.% Au-1:0.5 wt.% v-DABNA (50 nm)/DPEPO (10 nm)/TPBi (40 nm)/LiF (1.2 nm)/Al (100 nm) [2]
Colour blue light emitting device Deep blue
Max Current Efficiency 22.5 cd/A 
Max EQE 16..6%
Max. Power Efficiency 17.9 lm W-1


Device structure ITO/HATCN (5 nm)/NPB(30 nm)/TCTA (10 nm)/mCPBC:30 wt% 23PCX:1wt% v-DABNA (30 nm)/CzPhPy (10 nm)/DPyPA:Liq (1:1,30 nm)/LiF (0.5 nm)/Al (150 nm) [2]
Colour blue light emitting device Blue
Max EQE 25.2%
Max. Power Efficiency 53.5 lm W-1

 *For chemical structure information, please refer to the cited references.


Grade Order Code Quantity Price
Sublimed (>99% purity) M2423A1 100 mg £450
Sublimed (>99% purity) M2423A1 250 mg £890
Sublimed (>99% purity) M2423A1 500 mg £1430
Sublimed (>99% purity) M2423A1 1 g £2290

MSDS Documentation

v-dabna - 2251782-13-3v-DABNA MSDS Sheet

Literature and Reviews

  1. Narrowband deep-blue organic light-emitting diode featuring an organoboron-based emitter, Y. Kondo et al., Nat. Photonics 13, 678–682 (2019); DOI: 10.1038/s41566-019-0476-5.
  2. A gold(III)–TADF emitter as a sensitizer for high-color-purity and efficient deep-blue solution-processed OLEDs, J. Mater. Chem. C, 10, 4590 (2022); DOI: 10.1039/d1tc05487b.
  3. New [3+2+1] Iridium Complexes as EffectivePhosphorescent Sensitizers for Efficient NarrowbandSaturated–Blue Hyper–OLEDs, C. Wu et al., Adv. Sci., 10, 2301112 (2023); DOI: 10.1002/advs.202301112.
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