Ir(ppz)3

Ir(ppz)3, EBL for organic electronic devices

Doped Ir(ppz)3 used to enhance low wavelength optical-absorption capacity

Tris(phenylpyrazole)iridium, known as Ir(ppz)3, CAS number 562824-31-1, features a small lowest-unoccupied molecular orbital (LUMO) of around 1.6 eV. It has been normally used as an electron-blocking layer (EBL) in organic light-emitting diodes and other organic electronic devices (e.g. organic photovoltaics)

It has also been reported that Ir(ppz)3 doping can enhance low wavelength optical-absorption capacity, and that doping a small amount of Ir(ppz)3 can also improve the crystallinity of P3HT. Moreover, the large energy barrier between Ir(ppz)3 and the polymer active layer (which can reduce the electron current densities and increase the hole current densities) indicates a more balanced carrier transport based on hole- and electron-only devices [2].

General Information

*Measurable with the Ossila USB Spectrometer, see more on Spectrometers and Spectroscopy Accessories.

Product Details

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

Chemical Structure

Device Structure(s)

Device structure	Ag (80 nm)/MoO3 (2 nm)/MeO-TPD*:3 wt% F4-TCNQ (30 nm)/MeO-TPD (10 nm)/Ir(PPZ)3 (10 nm)/TCTA:8 wt% FIrpic:2% PO-01 (12 nm)/SPPO1:8 wt% FIrpic (15 nm)/BPhen (10 nm)/Bphen:3 wt% Li (20 nm)/Ag (14 nm) [3]
Colour	White
Max. Luminance	23,340 cd/m2
Max. Power Efficiency	15.39 lm W−1
Max. Current Efficiency	24.49 cd/A
Turn-on Voltage	3.1 V

Device structure	ITO/m-MTDATA (45nm)/Ir(ppz)3 (10 nm)/CBP:PO-01 (5 nm,6wt%)/Ir(ppz)3 (1 nm)/MADN: DSA-Ph* (25 nm,5wt%)/ BPhen (50 nm)/LiF(1nm)/Al(100 nm) [4]
Colour	White
Current Efficiency	21.0 cd/A@2, 300 cd/m2 20.1 cd/A@9, 300 cd/m2
CIE	(0.41,0.46) to (0.40,0.46) over 103 – 104 cd/m2

Device structure	ITO (180 nm)/TAPC (60 nm)/mCP:Firpic–8 wt% (10 nm)/Ir(ppz)3 (1.5 nm)/mCP:Firpic–8 wt% (10 nm)/Ir(ppz)3 (1.5 nm)/mCP:Firpic–8 wt% (10 nm)/TPBi (30 nm)/Liq (2 nm)/Al (120 nm) [5]
Colour	Blue
Luminance@200 cd/m2	32,570 cd/m2
Max. Current Efficiency	43.76 cd/A
Max. EQE	23.4%
Max. Power Efficiency	21.4 lm W−1

Device structure	ITO/MoOx (2 nm)/m-MTDATA:- MoOx (3:1, 10 nm)/m-MTDATA (30 nm)/Ir(ppz)3 (10 nm)/DBFPPO:FIrpic (10:1, 10 nm)/3TPYMB (10 nm)/BPhen (30 nm)/LiF(1 nm)/Al [6]
Colour	Blue
Max. Current Efficiency	35.5 cd/A
Max. EQE	15.5%

Device structure	ITO/m-MTDATA: MoOx (10 nm, 15 wt %)/m-MTDATA (30 nm)/Ir(ppz)3 (15 nm)/ mCP:FIrpic (5 nm, 10 wt %)/BPhen (2 nm)/mCP:(FBT)2Ir(acac) (5 nm, 6 wt %)/BPhen (40 nm)/LiF (1 nm)/ Al (100 nm) [7]
Colour	White
EQE@10 mA/cm2	12.5 %
CIE	(0.27 ± 0.01, 0.40 ± 0.01) over 103 – 104 cd/m2

Device structure	ITO/MoOx (2 nm)/m-MTDATA: MoOx (30 nm, 15 wt.%)/m-MTDATA (10 nm)/Ir(ppz)3 (10 nm)/CBP:PO-01* (3 nm, 6 wt.%)/Ir(ppz)3(1 nm)/DBFDPOPhCz*:FIrpic (10 nm,10 wt.%)/Bphen (36 nm)/LiF (1 nm)/Al [8]
Colour	White
Max. EQE	12.2%
Max. Current Efficiency	42.4 cd/A
Max. Power Efficiency	47.6 lm W−1

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

Characterisation

Pricing

MSDS Documentation

Ir(ppz)3 MSDS Sheet

Literature and Reviews

1. Blue and Near-UV Phosphorescence from Iridium Complexes with Cyclometalated Pyrazolyl or N-Heterocyclic Carbene Ligands, T. Sajoto et al., Inorg. Chem., 44 (22), 7992-8003(2005); DOI: 10.1021/ic051296i.
2. Performance Improvement in Poly(3-hexylthiophene):[6,6]-Phenyl C61 Butyric Acid Methyl Ester Polymer Solar Cell by Doping Wide-Gap Material Tris(phenylpyrazole)iridium, C-S. Ho et al., Appl. Phys. Express 6, 042301 (2013); http://dx.doi.org/10.7567/APEX.6.042301.
3. Flexible top-emitting warm-white organic light-emitting diodes with highly luminous performances and extremely stable chromaticity, H. Shi et al., Org. Electronics 15 (2014) 1465–1475; doi:10.1016/j.orgel.2014.03.031.

View Literature and Reviews