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PO-T2T


Product Code M2266A1
Price £120.00 ex. VAT

High purity PO-T2T, now available at new low prices

Popular TADF host and exciplex material, also used as transport layer material in organic electronic devices


New low prices on sublimed, high-purity PO-T2T with additional savings for quantities of 5 g (our most frequently purchased quantity) or more. Order today or contact us to place a bulk order (more than 50 g).

PO-T2T, known in full as 2,4,6-tris[3-(diphenylphosphinyl)phenyl]-1,3,5-triazineis, is an electron deficient semiconducting molecule with a triazine centre and three diphenylphosphines.

Exciplex-forming with other electron donating host materials such as mCP, PO-T2T is a popular TADF host material with a high triplet energy level. The forming of exciplexes between mCP and PO-T2T is efficient, as is the energy transfer from such an exciplex to a blue phosphorescent dopant such as FIrpic. This enables triplet harvesting without energy loss.

Because of its electron-deficient nature, PO-T2T is also used as electron transport layer (ETL) / hole blocking layer (HBL) material in organic electronic devices.

We supply low price, high purity (>99.0%) sublimed PO-T2T to institutions around the world, with free tracked shipping as standard on orders over £70.00. Quantities from 100 mg up to 1 kg (please contact us to enquire) are now available.

General Information

CAS number 1646906-26-4
Chemical formula C57H42N3O3P3
Molecular weight 909.80 g/mol
Absorption λmax 272 nm (in DCM)
Fluorescene λem 295 nm, 378 nm(in DCM)
HOMO/LUMO HOMO = 7.55 eV, LUMO = 3.50 eV [1]; ET= 2.99 eV
Full chemical name 2,4,6-Tris[3-(diphenylphosphinyl)phenyl]-1,3,5-triazine
Synonyms PO-T2T
Classification / Family Triazine derivatives, TADF exciplex co-host, phosphorescent organic light-emitting devices (PHOLEDs), TADF phosphorescent host, electron transport layer materials, sublimed materials

Product Details

Purity Sublimed* >99.0% (HPLC)
Melting point TGA 460 °C (0.5% weight loss)
Appearance Off-white powder/crystals

* 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

PO-T2T chemical structure
Chemical structure of 2,4,6-tris[3-(diphenylphosphinyl)phenyl]-1,3,5-triazine (PO-T2T), CAS 1646906-26-4

Device Structure(s)

Device structure ITO/MoO3(10 nm)/TAPC:MoO3 (20.0%, 50 nm)/CDBP (10 nm)/
dCDBP:PO-T2T:PO-01 (1:1, 0.3%, 20 nm)/PO-T2T (10 nm)/PO-T2T:Li2CO3 (3%,45 nm)/Li2CO3 (1 nm)/Al (100 nm) [2]
Colour White white
Max. Current Efficiency 88.7 cd/A
Max. EQE 28.3 %
Max. Power Efficiency 102.9 Im/W
Device structure ITO/PEDOT:PSS (30 nm)/TPAC (20 nm)/mCP (15 nm)/
mCP:PO-T2T (1:1, 20 nm)/PO-T2T (45 nm)/Liq (1 nm)/Al (1 nm)/MoO3(5 nm)/DTAF (20 nm)/DTAF:PO-T2T (1:1, 20 nm)/PO-T2T(50 nm)/Liq (0.5 nm)/Al (100 nm). [3]
Colour White white
Max. Current Efficiency 27.7 cd/A
Max. EQE 11.6 %
Max. Power Efficiency 15.8 Im/W
Device structure ITO/4% ReO3: mCP (60 nm)/ mCP (15 nm)/ CN-Cz2:PO-T2T (1:1 w%) (20 nm)/PO-T2T (10 nm)/CN-T2T (40 nm)/Liq (0.5 nm)/Al (100 nm). [4]
Colour White white
Max. Current Efficiency 37.8cd/A
Max. EQE 16%
Max. Power Efficiency 47.5 Im/W
Device structure ITO/MoO3 (3nm)/TAPC (35 nm)/CBP:TTM-3PCz (3.0 wt %) (25 nm)/B3PYMPM (10 nm)/PO-T2T (70 nm)/LiF (0.8 nm)/Al (100 nm) [5]
Colour Deep-red, NIR red
Max. EQE 26.5%

Pricing

Quantity Grade Product Code Price
100 mg Sublimed (>99.0% purity) M2266A1 £120.00
250 mg Sublimed (>99.0% purity) M2266A1 £240.00
500 mg Sublimed (>99.0% purity) M2266A1 £400.00
1 g Sublimed (>99.0% purity) M2266A1 £650.00
5 g (most popular) Sublimed (>99.0% purity) M2266A1 £1410.00
10 g Sublimed (>99.0% purity) M2266A1 £2350.00
25 g Sublimed (>99.0% purity) M2266A1 £5280.00

Please contact us for quantities over 50g and up to 1kg.

Orders over £70.00 qualify for FREE worldwide shipping. Save 8% on orders over £8,000.00 and 10% on orders over £10,000.00 as part of our large order discount.

MSDS Documentation

PO-T2T MSDSPO-T2T MSDS sheet

Literature and Reviews

  1. An Exciplex Forming Host for Highly Efficient Blue Organic Light Emitting Diodes with Low Driving Voltage, J-H. Lee et al., Adv. Funct. Mater., 25 (3), 361-366 (2014); DOI: 10.1002/adfm.201402707.
  2. Precise Exciton Allocation for Highly Efficient White Organic Light-Emitting Diodes with Low Efficiency Roll-Off Based on Blue Thermally Activated Delayed Fluorescent Exciplex Emission, Z. Wu et al., Adv. Optical Mater., 1700415 (2017); DOI: 10.1002/adom.201700415.
  3. The First Tandem, All-exciplex-based WOLED, W. Hung et al., Sci. Rep., 4, 5161 (2014); DOI: 10.1038/srep05161.
  4. Probe exciplex structure of highly efficient thermally activated delayed fluorescence organic light emitting diodes, T-C. Lin et al., Nature Commun., 9, 3111 (2018) DOI: 10.1038/s41467-018-05527-4.
  5. Efficient radical-based light-emitting diodes with doublet emission, X. Ai et al., Nature 563, 536–540(2018); DOI: 10.1038/s41586-018-0695-9.
  6. High-efficiency organic light-emitting diodes with exciplex hosts, Q. Wang et al., J. Mater. Chem. C, 7, 11329 (2019); DOI: 10.1039/c9tc03092a.

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. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.

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