PPF

CAS Number 911397-27-8

High Purity Sublimed Materials, Host Materials, Semiconducting Molecules

PPF, ETL material and host material for effective triplet excitons confinement

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

PPF, dibenzo[b,d]furan-2,8-diylbis(diphenylphosphine Oxide), contains an electron donating dibenzo[b,d]furan core and two electron deficient diphenylphosphine oxide units. Due to their electron deficient nature, both PPF and PPT can be used as electron transport layer materials, and in some cases, to form exciplex with electron deficient donors, i.e. TAPC as emitting layer materials in TADF-OLED devices.

PPF shows a high triplet energy (E_T = 3.1 eV) and it also can be used as host material for effective triplet excitons confinement in the emissive layer. PPF could also be used as exciton blocking layer material.

General Information

CAS number	911397-27-8
Full name	2,8-Bis(diphenyl-phosphoryl)-dibenzo[b,d]furan
Chemical formula	C₃₆H₂₆O₃P₂
Molecular weight	568.54 g/mol
Absorption	λ_max 300 nm in DCM
Fluorescence	λ_em 440 nm in DCM
HOMO/LUMO	HOMO = 6.7 eV, LUMO = 2.7 eV (E_T = 3.1 eV) [1]
Synonyms	DFPO DBFPO Dibenzo[b,d]furan-2,8-diylbis(diphenylphosphine Oxide)
Classification / Family	Dibenzofuran derivatives, Organic electronics, Electron-transport layer materials (ETL), Phosphorescent host materials, Fluorescent host materials, TADF-OLEDs, Organic long persistent luminescence, Sublimed materials.

Product Details

Purity	Sublimed: >99.0% (HPLC)
Melting point	253 °C (dec.)
Appearance	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

Device Structure(s)

Device structure	ITO (50 nm)/HAT-CN (10 nm)/TAPC (50 nm)/CCP (10 nm)/PPF:TMCz-BO (20 nm)/PPF (10 nm)/B3PyPB (30 nm)/Liq (1 nm)/Al (100 nm) [1]
Colour	Blue
Max. EQE	20.7%

Device structure	ITO (50 nm)/TAPC (70 nm)/CDBP (10 nm)/6 wt% CCX-II:PPF (20 nm)/PPF (10 nm)/BmPyPhB (30 nm)/Liq (1 nm)/Al (80 nm) [2]
Colour	Blue
Max. EQE	25.9%
Max. Current Efficiency	41.1 cd/A
Max. Power Efficiency	35.9 lm/W

Device structure	ITO (50 nm)/HAT-CN (10 nm)/α-NPD (50 nm)/CCP (5 nm)/ 6 wt % DPAc-INN-1:PPF (20 nm)/PPF (10 nm)/TPBi (50 nm)/Liq (1 nm)/Al (100 nm) [3]
Colour	Blue
Max. EQE	12.8%
Max. Current Efficiency	24.2 cd/A
Max. Power Efficiency	18.1 lm/W

Device structure	ITO/HAT-CN (10 nm)/a-NPD (40 nm)/CCP (5 nm)/18 wt% MFAc-PPM:PPF (20 nm)/PPF (10 nm)/TPBi (30 nm)/Liq (1 nm)/Al (100 nm) [4]
Colour	Blue
Max. EQE	20.4%
Max. Current Efficiency	41.7 cd/A
Max. Power Efficiency	37.2 lm/W

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

Pricing

Grade	Order Code	Quantity	Price
Sublimed (>99.0% purity)	M2295A1	100 mg	£230
Sublimed (>99.0% purity)	M2295A1	250 mg	£460
Sublimed (>99.0% purity)	M2295A1	500 mg	£760
Sublimed (>99.0% purity)	M2295A1	1 g	£1250

MSDS Documentation

PPF MSDS sheet

Literature and Reviews

Nanosecond-time-scale delayed fluorescence molecule for deep-blue OLEDs with small efficiency rolloff, J. Kim et al., Nature Commun., 11, 1765 (2020); DOI: 10.1038/s41467-020-15558-5.
Blue organic light-emitting diodes realizing external quantum efficiency over 25% using thermally activated delayed fluorescence emitters, T. Miwa et al., SCi. Report, 7, 284 (2017); DOI:10.1038/s41598-017-00368-5.
An Isonicotinonitrile-based Blue Thermally Activated Delayed Fluorescence Emitter, I. Park et al., Chem. Lett., 49, 210–213 (2020); DOI:10.1246/cl.190808.

Pyrimidine-based twisted donor–acceptor delayed fluorescence molecules: a new universal platform for highly efficient blue electroluminescence, I. Park et al., Chem. Sci., 8, 953 (2017); DOI: 10.1039/c6sc03793c.
Bluish green emission from pyrene-pyrazoline containing heterocyclic materials and their electronic properties, A. Karuppusamy et al., J. Luminescence, 194, 718-728 (2017); DOI: 10.1016/j.jlumin.2017.09.042.