ossila材料PO-T2T_深圳市泽任科技有限公司

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High purity PO-T2T, low price with additional savings for quantities of 5 g or more

Popular TADF host and exciplex material, also used as transport layer material in organic electronic devices, 2,4,6-tris[3-(diphenylphosphinyl)phenyl]-1,3,5-triazine, CAS No. 1646906-26-4

PO-T2T 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 with a deep highest occupied molecular orbital (HOMO = 7.55 eV), PO-T2T is also used as electron transport layer (ETL) / hole blocking layer (HBL) material in organic electronic devices.

Together with other electron donating materials, PO-T2T as universal exciplex hosts with improved device lifetime, efficiency and lower driving voltage.

Guest	Exciplex Host	Color	Efficiencies	DOI
FIrPic	mCBP:PO-T2T	Sky-Blue Phosphorescent	EQE: 34.1% Max. PE: 79.6 lm W−1	10.1002/adma.201506065
4CzIPN	CBP:PO-T2T	Green TADF	EQE: 20.0% Max. PE: 62.1 lm W−1	10.1016/j.orgel.2019.06.001
Ir(mphmq)2tmd	NPB:PO-T2T	Red phosphorescent	EQE: 34.1% Max. PE: 62.2 lm W−1	10.1021/acsami.6b14438
2CzPN, AnbTPA	CDBP:PO-T2T	White TADF	EQE: 19.2% Max. PE: 46.2 lm W−1	10.1016/j.orgel.2017.08.024

Highly efficient thermally activated delayed fluorescence (TADF) exhibiting high reverse intersystem crossing (RISC) yields by using PO-T2T as the acceptor unit to form exciplex emitting layer.

Exciplex Emission Layer	Color	Efficiencies	DOI
DMAC-DPS:PO-T2T	536 nm to 496 nm	EQE: 10.4–12.1% Max. PE: 24.2–39.5 lm W−1	10.1016/j.optmat.2020.110779
MAC:PO-T2T	Green TADF	EQE: 17.8% Max. PE: 45.5 lm W−1	10.1002/adfm.201505014
TSBPA:PO-T2T	Green TADF	EQE: 14.8%	10.1021/acs.jpclett.8b03646
Ir(ppy)3:PO-T2T	Red TADF	EQE: 5%	10.3389/fchem.2019.00016

General Information

CAS number	1646906-26-4
Chemical formula	C57H42N3O3P3
Molecular weight	909.80 g/mol
Absorption	λmax 272 nm (in DCM)
Fluorescence	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	POT2T
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* >99.5% (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.

Chemical Structure

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

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