FIr6

CAS Number 664374-03-2

Dopant Materials, Materials, Semiconducting Molecules

FIr6, deep blue emitter material for OLED devices

High-purity (>99%)

Bis(2,4-difluorophenylpyridinato)-tetrakis(1-pyrazolyl)borate iridium(III), FIr6, is commonly used as a blue emitter material for OLED devices.

In terms of colour, purity and quality, FIr6 is more practical for use in full-colour display devices and lighting applications compared to the more widely-used blue phosphorescent emitter, FIrPic. FIr6 shows deeper blue emissions with major vibronic peaks at 458 and 489 nm, while FIrPic has major vibronic emission peaks at 475 and 500 nm.

General Information

CAS number	664374-03-2
Full name	Bis(2,4-difluorophenylpyridinato)-tetrakis(1-pyrazolyl)borate iridium(III)
Chemical formula	C₃₄H₂₄N₁₀BF₄Ir
Molecular weight	851.64 g/mol
Absorption*	λ_max 367 nm in THF
Fluorescence	λ_em 461 nm in DCM
HOMO/LUMO	HOMO 6.10 eV, LUMO 3.10 eV [1]
Synonyms	Iridium (III) bis(4',6'-difluorophenylpyridinato)tetrakis(1-pyrazolyl)borate
Classification / Family	Iridium Complex, Organic electronics, TADF-OLEDs, Blue dopant materials, Blue phosphorescent OLED materials, Sublimed materials.

* Measurable with an USB Spectrometer, see our spectrometer application notes.

Product Details

Purity	>99%
Melting point	TGA: >280 °C (0.5% weight loss)
Appearance	Yellow powder/crystals

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

Chemical Structure

Device Structure(s)

Device structure	ITO/TAPC (40 nm)/m-DCz-S:10 wt% FIr6 (10 nm)/TmPyPB (40 nm)/LiF (1 nm)/Al (100 nm) [2]
Colour	Blue
Max Current Efficiency	49.8 cd/A
Max EQE	25.1%
Max. Power Efficiency	50.9 lm W^-1

Device structure	ITO/NPB (10 nm)/TCTA (20 nm)/BCPO: FIr6 (7–8%, 30 nm)/BCP (10nm)/Alq (50 nm)/LiF (1 nm)/Al (100 nm) [3]
Colour	Blue
Max. Luminance	28,718 cd/m²
Max. Current Efficiency	36.8 cd/A
Max. EQE	19.8%
Max. Power Efficiency	33.1 lm W^-1

Device structure	ITO/ PEDOT:PSS (35 nm)/TAPC (40 nm)/Ad-Cz:5wt%FIr6 (7 nm)/Ad-Pd:10wt%FIr6 (15 nm)/TPBI (40 nm)/LiF (1 nm)/Al (100 nm) [4]
Colour	Blue
Max. EQE	19.0%
Max. Power Efficiency	33.0 lm W^-1

Device structure	ITO/PEDOT:PSS (40 nm)/ p-TAZSiTPA:FIr6 (10 wt%, 40 nm)/Tm3PyPB (5 nm)/TPBI (30 nm)/LiF (1 nm)/Al (100 nm [5]
Colour	Blue
Max. Current Efficiency	12.5 cd/A
Max. EQE	6.3%
Max. Power Efficiency	6.2 lm W^-1

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

Pricing

Grade	Order Code	Quantity	Price
>99% purity	M2126B1	100 mg	£380
>99% purity	M2126B1	250 mg	£880

Literature and Reviews

Efficient, deep-blue organic electrophosphorescence by guest charge trapping, R. J. Holmes et al., Appl. Phys. Lett. 83, 3818 (2003); doi: 10.1063/1.1624639.
An ideal universal host for highly efficient full-color, white phosphorescent and TADF OLEDs with a simple and unified structure, K. Gao et al., J. Mater. Chem. C, 5, 10406 (2017); DOI: 10.1039/c7tc04149g.
A Highly Efficient Universal Bipolar Host for Blue, Green, and Red Phosphorescent OLEDs, H. Chou et al., Adv. Mater., 22, 2468–2471 (2010); DOI: 10.1002/adma.201000061.

Pyridoindole Derivative as Electron Transporting Host Material for Efficient Deep-blue Phosphorescent Organic Light-emitting Diodes, H. Fukagawa et al., Adv. Mater., 22, 4775–4778 (2010); DOI: 10.1002/adma.201001221.
Highly Efficient Deep-Blue Electrophosphorescence Enabled by Solution- Processed Bipolar Tetraarylsilane Host with Both a High Triplet Energy and a High-Lying HOMO Level, S. Gong et al., Adv. Mater., 23, 4956–4959 (2011); DOI: 10.1002/adma.201102758.
High-efficiency white organic light emitting devices with three separate phosphorescent emission layers, Y. Sun et al., Appl. Phys. Lett. 91, 263503 (2007); doi: 10.1063/1.2827178.