Ir(btpy)3

CAS Number 405289-74-9

Dopant Materials, High Purity Sublimed Materials, Materials, Semiconducting Molecules

Ir(btpy)3, efficient red PhOLED

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

Tris(2-(benzo[b]thiophen-2-yl)pyridineiridium, known as Ir(btpy)₃, is an efficient red phosphorescent emitter (PHOLED). It is commonly used in organic light-emitting diodes and polymer solar cells as a dopant, and in barometric pressure probes due to its sensitivity to oxygen [2].

Wang et al. demonstrated that a higher Ir(btpy)₃ doping concentration is beneficial to photon harvesting in the active layer, but the interpenetrating network of P3HT:PCBM can be damaged through high-temperature annealing treatment [3].

General Information

CAS number	405289-74-9
Chemical formula	C₃₉H₂₄IrN₃S₃
Molecular weight	823.08 g/mol
Absorption	λ_max 292, 366, 408 nm in THF
Fluorescence	λ_em 596, 645 nm in THF
HOMO/LUMO	HOMO 5.08 eV; LUMO 2.67 eV [1]
Synonyms	Tris(2-(benzo[b]thiophen-2-yl)pyridineiridium(III); Tris[2-(benzo[b]thiophen-2-yl)pyridinato-C3,N]iridium(III) fac-Tris[2-(benzo[b]thiophen-2-yl)pyridinato-C3,N]iridium(III) fac-Ir(btpy)3, Tris(2-(benzo[b]thiophen-2-yl)pyridineiridium(III)
Classification / Family	Organometallic complex, phosphorescent red emitter, phosphorescence dopant OLEDs, polymer solar cells, sublimed materials

Product Details

Purity	>99.0% (sublimed)
Melting point	> 300 °C
Colour	Red powder

*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials.

Chemical Structure

Characterisation

1H NMR Ir(btpy)3 — ¹H NMR of *fac-*Tris[2-(benzo[b]thiophen-2-yl)pyridinato-C3,N]iridium(III) Ir(btpy)₃ in CDCl₃

HPLC ir(btpy)3 — HPLC trace of Tris[2-(benzo[b]thiophen-2-yl)pyridinato-C3,N]iridium(III), Ir(btpy)₃

Pricing

Grade	Order Code	Quantity	Price
Sublimed (>99.0% purity)	M491	100 mg	£330
Sublimed (>99.0% purity)	M491	250 mg	£660
Sublimed (>99.0% purity)	M491	500 mg	£1200
Sublimed (>99.0% purity)	M491	1 g	£2100

MSDS Documentation

Ir(btpy)3 MSDS sheet

Literature and Reviews

The Red Electroluminescence of Iridium Complex at Different Concentrations and Host Materials, W. Zhang et al., Appl. Mechanics and Mater., Ch. 2, 94-97 (2014); DIO: 10.4028/www.scientific.net/AMM.633-634.94.
Structure–Property Relationship of Red- and Green-Emitting Iridium(III) Complexes with Respect to Their Temperature and Oxygen Sensitivity, N. Tian et al., Eur. J. Inorg. Chem. 2010, 4875–4885, DOI: 10.1002/ejic.201000610.
Effect of Doping Phosphorescent Material and Annealing Treatment on the Performance of Polymer Solar Cells, Z. Wang et al., Inter. J. Photoenergy, 273586 (2013), http://dx.doi.org/10.1155/2013/273586.

Red-green-blue polymer light-emitting diode pixels printed by optimized laser-induced forward transfer, J. Stewart et al., Appl. Phys. Lett. 100, 203303 (2012); http://dx.doi.org/10.1063/1.4717463.
Homoleptic Cyclometalated Iridium Complexes with Highly Efficient Red Phosphorescence and Application to Organic Light-Emitting Diode, A. Tsuboyama et al., J. Am. Chem. Soc., 125, 12971-12979 (2003), DOI: 10.1021/ja034732d.
Photopolymerization of N-Vinylcarbazole Using Visible-Light Harvesting Iridium Complexes as Photoinitiators, J. Lalevee et al., Macromolecules 45, 4134−4141 (2012), dx.doi.org/10.1021/ma3005229.