FREE shipping to on qualifying orders when you spend or more, processed by Ossila BV. All prices ex. VAT. Qualifying orders ship free worldwide! Fast, secure, and backed by the Ossila guarantee. It looks like you are visiting from , click to shop in or change country. Orders to the EU are processed by our EU subsidiary.

It looks like you are using an unsupported browser. You can still place orders by emailing us on, but you may experience issues browsing our website. Please consider upgrading to a modern browser for better security and an improved browsing experience.

Product Code M2419A1-LT-100mg
Price $263 ex. VAT

Quality assured

Expert support

Volume discounts

Worldwide shipping

Fast and secure

Electron Transport Layer Material with Triazine Core

High purity sublimed electron deficient material for highly efficient TADF-OLEDs

TmPPPyTz, namely 2,4,6-tris(3'-(pyridin-3-yl)biphenyl-3-yl)-1,3,5-triazine, has a wheel-shaped structure with 1,3,5-triazine core and three side arms of 3-pridylbiphenyl, and pyridines on the peripheral. It is highly electron deficient thus used as electron transport layer (ETL), hole blocking layer (HBL) material in highly efficient light-emitting diodes.

Hole-blocking ETL material in OLEDs

Hole-blocking ETL material

Hole-blocking ETL material in OLEDs

Worldwide shipping

Worldwide shipping

Quick and reliable shipping

High purity 939430-31-6 sublimed material

High purity sublimed material


TmPPPyTz wheel shaped molecule

Unique molecular confirmation

wheel shaped molecule

Device with platinum(II) complexes bearing tetradentate ligand with a bridging tertiary amine (tetra-Pt-N) as the active layer material with double-host TCTA:B3PYPM, and B3PYPM as the interlayer between the emissive layer and TmPPPyTz as the electron-transport layer, achieved a maximum power efficiency of over 100 lm/W, a low turn-on voltage of less than 2.5 V and low efficiency roll-off.

TmPPPyTz has a similar structure to 3N-T2T which tends to form exciplex with electron donor as co-host or emitting layer material.

General Information

CAS number 939430-31-6
Chemical formula C54H36N6
Molecular weight 768.9 g/mol
Absorption* λmax 251 nm (in DCM)
Fluorescence λem (n.a.)
HOMO/LUMO HOMO = 6.63eV, LUMO = 3.09 eV
Synonyms 2,4,6-Tris(3'-(pyridin-3-yl)biphenyl-3-yl)-1,3,5-triazine
Classification / Family Triazine derivatives, Electron transport layer (ETL), Hole blocking layer (HBL), Sublimed materials.

Product Details

Purity Sublimed* >99% (HPLC)
Melting point TGA: Td > 400° C. (5% weight loss)
Appearance Off white crystals/powder

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

Chemical Structure

tmpppytz - 939430-31-6 - 2,4,6-tris(3'-(pyridin-3-yl)biphenyl-3-yl)-1,3,5-triazine chemical structure
2,4,6-Tris(3'-(pyridin-3-yl)biphenyl-3-yl)-1,3,5-triazine (TmPPPyTz) chemical structure, 939430-31-6

Device Structure(s)

Device structure ITO/MO3/TCTA:B3PYPM: tetra-Pt-N* (18 nm)/B3PYMPM (10 nm)/TMPPPYTZ (40 nm)/LIF/Al [1]
Colour green light emitting device Green
Max Current Efficiency 87.2 cd/A 
Max EQE 23.2%
Max. Power Efficiency 102.8 lm W-1


Device structure ITO/TcTa:MoOx (40 nm, 15 wt.%)/TcTa (10 nm)/TcTa:10 wt.% FIrpic (5 nm)/TmPPPyTz:10 wt.% FIrpic (5 nm)/TmPPPyTz (40 nm)/Cs2CO3 (1 nm)/Al [2]
Colour blue light emitting device Blue
Max Current Efficiency 26.9 cd/A
Max EQE 13.3%
Max. Power Efficiency 32.5 lm W-1


Device structure ITO/TcTa:MoOx (40 nm, 15 wt.%)/TcTa (10 nm)/TcTa:6 wt.% Ir(ppy)3 (5 nm)/TmPPPyTz:6 wt.% Ir(ppy)3 (5 nm)/TmPPPyTz (40 nm)/Cs2CO3 (1 nm)/Al [2]
Colour green light emitting device Green
Max Current Efficiency 48.7 cd/A
Max EQE 14.3%
Max. Power Efficiency 58.8 lm W-1


Device structure ITO/TcTa:MoOx (40 nm, 15 wt.%)/TcTa (10 nm)/TcTa:8 wt.% Ir(MDQ)2(acac) (5 nm)/TmPPPyTz:8 wt.% Ir(MDQ)2(acac) (5 nm)/TmPPPyTz (40 nm)/Cs2CO3 (1 nm)/Al [2]
Colour red light emitting device Red
Max Current Efficiency 20.1 cd/A
Max EQE 13.7%
Max. Power Efficiency 24.9 lm W-1

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


Grade Order Code Quantity Price
Sublimed (>99% purity) M2419A1 100 mg £210
Sublimed (>99% purity) M2419A1 250 mg £420
Sublimed (>99% purity) M2419A1 500 mg £730
Sublimed (>99% purity) M2419A1 1 g £1100

MSDS Documentation

tmpppytz - 939430-31-6 - 2,4,6-tris(3'-(pyridin-3-yl)biphenyl-3-yl)-1,3,5-triazineTmPPPyTz MSDS Sheet

Literature and Reviews

  1. High-performance organic light-emitting diodes with low-efficiency roll-off using bulky tetradentate [Pt(O^N^C^N)] emitters, M. Mao et al., J. Mater. Chem. C, 7, 7230-7236 (2019); DOI: 10.1039/C9TC00682F.
  2. Low driving voltage blue, green, yellow, red and white organic light-emitting diodes with a simply double light-emitting structure, Z. Zhang et al., Opt. Express, 22 (2), 1815-1823 (2014); DOI: 10.1364/OE.22.001815.
  3. Carbazole-based Multiple Resonance Dendrimers with Narrowband Blue Emission for Solution-Processed OLEDs, J. Liu et al., Chinese J. Polym. Sci., 41, 802–810 (2023); DOI: 10.1007/s10118-023-2977-4.
  4. Tuning Energy Levels of Electron-​Transport Materials by Nitrogen Orientation for Electrophosphorescent Devices with an 'Ideal' Operating Voltage, S. Su et al., Adv. Mater. 2010, 22, 3311–3316;DOI:10.1002/adma.200904249.
  5. High-Performance Red Quantum-Dot Light-Emitting Diodes Based on Organic Electron Transporting Layer, L. Yang et al., Adv. Funct. Mater., 31 (6), 2007686 (2021); DOI: 10.1002/adfm.202007686.
  6. Emissive and charge-generating donor–acceptor interfaces for organic optoelectronics with low voltage losses, S. Ullbrich et al., Nat. Mater., 18, 459–464 (2019); DOI: 10.1038/s41563-019-0324-5.

To the best of our knowledge the information provided here is accurate. 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.

Return to the top