3TPYMB

CAS Number 929203-02-1

MSDS

3TPYMB, an excellent ETL material which allows efficient electron injection

High-purity (>99.0%) and available online for priority dispatch

Tris(2,4,6-trimethyl-3-(pyridin-3-yl)phenyl)borane (known as 3TPYM) is an excellent electron-transport material. With a LUMO energy level of 3.3 eV [1], just lower than most of the work function of cathodes (i.e. CsF/Al), it allows efficient electron injection. This prevents extra electrons from accumulating at the interface.

3TPYMB is also a hole-blocking material with high HOMO of 6.80 eV [1]. This is high enough to block the holes from being recombined with the electrons at the cathode.

3TPYMB has a high triplet-excited energy level (E_T = 2.95 eV) [3].

General Information

CAS number	929203-02-1
Chemical formula	C₄₂H₄₂BN₃
Molecular weight	599.61 g/mol
Absorption*	λ_max 331 nm in THF
Fluorescence	λ_em 382 nm in THF
HOMO/LUMO	HOMO 6.8 eV, LUMO 3.3 eV
Synonyms	Tris(2,4,6-trimethyl-3-(pyridin-3-yl)phenyl)borane, Tri[3-(3-pyridyl)mesityl]borane
Classification / Family	Electron-transporting materials, Phosphorescent host materials, Light-emitting diodes, Perovskite solar cells, Organic electronics, TADF materials, Sublimed materials

* Measurable with an USB Spectrometer, see our spectrometer application notes.

Product Details

Purity	Sublimed >99.0% (HPLC)
Melting point	TGA: 250 °C (0.5% weight loss)
Appearance	White powder/crystals

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

Chemical Structure

Device Structure(s)

Device structure	ITO/PEDOT:PSS/m-MTDATA(20 nm)/ m-MTDATA:3TPYMB(60 nm)/3TPYMB*(10 nm)/LiF(0.8 nm)/ Al(100 nm) [3]
Colour	Red
Max. Luminance	17,100cd/m²
Max. Current Efficiency	36.79 cd/A

Device structure	ITO/EHI608/TCTA/TCTA:3TP:Firpic (1:1:0.17)/3TPYMB/Al [6]
Colour	Blue
Max Power Efficiency	27.5 lm W^-1
Max. Current Efficiency	36.0 cd/A

Device structure	ITO/MoO₃ (1 nm)/TAPC (40 nm)/mCP (10 nm)/DPEPO doped with 2* (12wt%, 20 nm)/3TPYMB (50 nm)/LiF (1 nm)/Al (100 nm) [7]
Colour	Blue
Max Current Efficiency	33.5 cd/A
Max EQE	19.7
Max. Power Efficiency	26.3 lm W^-1

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

Pricing

Grade	Order Code	Quantity	Price
Sublimed (>99.0% purity)	M2088A1	100 mg	£180
Sublimed (>99.0% purity)	M2088A1	250 mg	£400
Sublimed (>99.0% purity)	M2088A1	500 mg	£660

MSDS Documentation

3TPYMB MSDS sheet

Literature and Reviews

Boosting thin-ﬁlm perovskite solar cell eﬃciency through vacuum-deposited sub-nanometer small-molecule electron interfacial layers, W-H. Lee et al., Nano Energy 38, 66–71 (2017); https://doi.org/10.1016/j.nanoen.2017.05.049.
Organic light-emitting diodes employing efficient reverse intersystem crossing for triplet-to-singlet state conversion, K. Goushi et al., Nat. Photonics 6, 253–258 (2012) doi:10.1038/nphoton.2012.31.
Novel Electron-transport Material Containing Boron Atom with a High Triplet Excited Energy Level, D. Tanaka et al., Chem. Lett., 36, 262-263 (2007).

Exciplex emission and decay of co-deposited 4,4′,4″-tris[3-methylphenyl(phenyl)amino]triphenylamine:tris-[3-(3-pyridyl)mesityl]borane organic light-emitting devices with different electron transporting layer thicknesses, Q Huang et al., Appl. Phys. Lett. 104, 161112 (2014); DIO: 10.1063/1.4870492.
Metal-Oxide-Free Methylammonium Lead Iodide Perovskite-Based Solar Cells: the Influence of Organic Charge Transport Layers, O. Malinkiewicz et al., Adv. Energy Mater., 4, 1400345 (2014).
Enhance efficiency of blue and white organic light emitting diodes with mixed host emitting layer using TCTA and 3TPYMB, T-C. Liao et al., Curr. Appl. Phys., 13, S152-S155, (2013).
Bis-Tridentate Ir(III) Metal Phosphors for Efficient Deep-Blue Organic Light- Emitting Diodes, H-H. Kuo et al., Adv.Mater., 29, 1702464 (2017); DOI: 10.1002/adma.201702464.