Eu(dbm)3(Phen)

CAS Number 17904-83-5

Dopant Materials, High Purity Sublimed Materials, Materials, Semiconducting Molecules

Sublimed Eu(dbm)3(Phen), >99.0% purity

Red-orange phosphorescence emitter

Eu(dbm)₃(Phen) - tris(dibenzoylmethane)phenanthroline europium(III) - is a typical tenary Eu³⁺complex with a ligand 1,3- diphenylpropane-1,3-dione and a secondary phenanthroline ligand coordinating to the europium core. Eu(dbm)₃(Phen) displays red-orange phosphorescence emission at 615 nm with a narrow bandwidth (color purity) FWHM smaller than 100 cm^-1 in OLEDs. Eu(dbm)₃(Phen) is preferably co-deposited with a charge transport material to reduce the chance of self-quenching (concentration quenching) and to improve charge carrier mobilities.

Eu(dbm)₃(Phen) is also frequently embedded in polyvinylcarbazole (PVK) or mesoporous silica nanoparticles for electroluminescence studies to improve its efficiency and photo stability.

General Information

CAS number	17904-83-5
Full name	Tris(dibenzoylmethane)phenanthroline europium(III)
Chemical formula	C₅₇H₄₁N₂O₆Eu
Molecular weight	1001.93 g/mol
Absorption	λ_max 257 nm, 355 nm in THF
Fluorescence	λ_em 615 nm in THF
HOMO/LUMO	HOMO = 5.22 eV, LUMO = 2.93 eV [1]
Synonyms	Tris(dibenzoylmethane) mono(1,10-phenanthroline)europium(lll)
Classification / Family	Europium complexes, Organic electronics, Red dopant, Sublimed materials.

Product Details

Purity	Sublimed: >99.0% (HPLC)
Melting point	Mp (onset) =199°C (DTA), TGA: 234.6 °C (0.5% weight loss)
Appearance	Yellow powder/crystals

*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials.

Chemical Structure

Device Structure(s)

Device structure	ITO/PEDOT:PSS/TAPC (50 nm)/PVK:20 wt% Eu(dbm)₃(Phen)/b-PBD/Al [2]
Colour	Pinkish-Red
Luminous efficiency@29 V	26 cd/mA

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

Pricing

Grade	Order Code	Quantity	Price
Sublimed (>99.0% purity)	M2296A1	250 mg	£330
Sublimed (>99.0% purity)	M2296A1	500 mg	£520
Sublimed (>99.0% purity)	M2296A1	1 g	£850

MSDS Documentation

Eu(dbm)3(Phen) MSDS sheet

Literature and Reviews

Preparation and characteristics of Eu(DBM)3phen: Synthesis, single-crystal structure and spectroscopic analysis, L. Ruan et al., J. Mol. Struct., 1149, 265-272 (2017); DOI: 10.1016/j.molstruc.2017.08.003.
The dependence of OLED external efficiency on the mass concentration of europium(III) dispersed in PVK, G. Santos et al., ECS Trans., 39 (1), 475-480 (2011); DOI:10.1149/1.3615229.
Optical amplification of Eu(DBM)3Phen-doped polymer optical fiber, H. Liang et al., Opt. Lett., 29 (6), 447-449 (2004); DOI:10.1364/OL.29.000477.

Electroluminescence from europium(III) complexes, H. Xu et al., Coord. Chem. Rev., 293-294, 228-249 (2015); DOI: 10.1016/j.ccr.2015.02.018.
Concentration quenching and photostability in Eu (dbm)3phen embedded in mesoporous silica nanoparticles, E. Moretti et al., J. Luminescence, 146:178-185 (2014); DOI: 10.1016/j.jlumin.2013.09.059.
Phosphorescent materials for application to organic light emitting devices, M. Baldo et al., Pure Appl. Chem., 71 (11), 2095-2106 (1999); DOI:10.1351/pac199971112095.