Forming exciplex with other electron donating host materials, mCP for example, PO-T2T is a popular TADF host material with high triplet energy level. Exciplexes are formed efficiently between mCP and PO-T2T in the host and the energy transfer from the exciplex to blue phosphorescent dopant i.e. FIrpic is also efficient, enabling the triplet harvest without energy loss.
For its electron-deficient nature, PO-T2T is also used as electron transport layer (ETL)/hole blocking layer (HBL) material in organic electronic devices.
|Molecular weight||909.80 g/mol|
|Absorption||λmax272 nm (in DCM)|
|Fluorescene||λem295 nm, 378 nm(in DCM)|
|HOMO/LUMO||HOMO = 7.55 eV, LUMO = 3.50 eV ; ET= 2.99 eV|
|Full chemical name||2,4,6-Tris[3-(diphenylphosphinyl)phenyl]-1,3,5-triazine|
|Classification / Family||Triazine derivatives, TADF exciplex co-host, Phosphorescent organic light-emitting devices (PHOLEDs), TADF phosphorescent host, Electron transport layer materials, Sublimed materials|
|Purity||Sublimed >99.0% (HPLC)|
|Melting point||TGA 460 °C(0.5% weight loss)|
*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.
|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) 
|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 (151, 20 nm)/PO-T2T (45 nm)/Liq (1 nm)/Al (1 nm)/MoO3(5 nm)/DTAF (20 nm)/DTAF:PO-T2T (151, 20 nm)/PO-T2T(50 nm)/Liq (0.5 nm)/Al (100 nm). 
|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). |
|Max. Current Efficiency||37.8cd/A|
|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) |
|Sublimed(>99.0% purity)||M2266A1||100 mg||£150.00|
|Sublimed(>99.0% purity)||M2266A1||250 mg||£300.00|
|Sublimed(>99.0% purity)||M2266A1||500 mg||£500.00|
|Sublimed(>99.0% purity)||M2266A1||1 g||£850.00|
Literature and Reviews
- 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.
- 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.
The First Tandem, All-exciplex-based WOLED, W. Hung et al., Sci. Rep., 4, 5161 (2014); DOI: 10.1038/srep05161.
- 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.
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.
- 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.