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932744

Sigma-Aldrich

Tris[2-(p-tolyl)pyridine]iridium(III)

≥99% (HPLC)

Synonym(s):

Ir(p-Me-ppy)3 , Ir(mppy)3

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About This Item

Empirical Formula (Hill Notation):
C36H30IrN3
CAS Number:
149005-33-4
Molecular Weight:
696.86
UNSPSC Code:
12352302
NACRES:
NA.21

grade

sublimed grade

Quality Level

100

Assay

≥99% (HPLC)

loss

0.5% TGA, >330°C (weight loss)

solubility

chloroform: soluble
dichloromethane: soluble
toluene: soluble

λmax

287 nm±5 nm in dichloromethane
373 nm±5 nm in dichloromethane

fluorescence

λem 514 nm±10 nm in dichloromethane

Orbital energy

HOMO 5.6 eV 
LUMO 3.0 eV 

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Application

Tris[2-(p-tolyl)pyridine]iridium(III), also known as Ir(mppy)3, is a solution-processable small molecule, used as green phosphorescent dopant in highly-efficient light emitting diode (LED) displays, both perovskite and organic LEDs.
Tris[2-(p-tolyl)pyridine]iridium(III) is widely utilized as a phosphorescent emitter in OLED devices, particularly in green or yellow organic light-emitting diodes (OLEDs). It can be used in R&D studies for the development of advanced display technologies, including flat-panel displays and organic electroluminescent (OEL) displays. It is suitable in studies such as solid-state lighting including white OLEDs (WOLEDs) and organic light-emitting transistors (OLETs). It has been studied as a sensitizer in dye-sensitized solar cells (DSSCs), as a component in hybrid perovskite solar cells. It can be used in the research area of chemical sensor applications.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Highly efficient green single-emitting layer phosphorescent organic light-emitting diodes with an iridium(III) complex as a hole-type sensitizer
Wu R, et al.
Journal of Material Chemistry C, 7, 2744-2750 (2019)
Organic Light-Emitting Diodes with 30% External Quantum Efficiency Based on a Horizontally Oriented Emitter
Kim, Sei-Yong, et al.
Advanced Functional Materials , 23, 3896-3900 (2013)
Xin Ai et al.
Nature, 563(7732), 536-540 (2018-11-23)
Organic light-emitting diodes (OLEDs)1-5, quantum-dot-based LEDs6-10, perovskite-based LEDs11-13 and micro-LEDs14,15 have been championed to fabricate lightweight and flexible units for next-generation displays and active lighting. Although there are already some high-end commercial products based on OLEDs, costs must decrease whilst maintaining high
Kebin Lin et al.
Nature, 562(7726), 245-248 (2018-10-12)
Metal halide perovskite materials are an emerging class of solution-processable semiconductors with considerable potential for use in optoelectronic devices1-3. For example, light-emitting diodes (LEDs) based on these materials could see application in flat-panel displays and solid-state lighting, owing to their

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