1,3-Bis(N-carbazolyl)benzene, known as mCP, with a high triplet energy (ET = 2.91 eV) and a very deep highest occupied molecular orbital (HOMO) level, is often used as host materials for efficient blue phosphorescent light-emitting diodes. Kawamura et al. demonstrated that the photoluminescence internal quantum yield of the blue emitter of FIrpic could approach nearly 100% when doped into the wide energy gap host of mCP [1].
General Information
CAS number | 550378-78-4 |
Chemical formula | C30H20N2 |
Molecular weight | 408.49 g/mol |
Absorption | λmax 292, 338 nm (in THF) |
Fluorescence | λem 345, 360 nm (in THF) |
HOMO/LUMO | HOMO = 5.9 eV, LUMO = 2.4 eV |
Synonyms | mCP, 1,3-Di(9H-carbazol-9-yl)benzene, N,N′-Dicarbazolyl-3,5-benzene |
Classification / Family | Carbazole derivatives, Hole transporting materials, Phosphorescent host materials, OLEDs, Organic electronics |
Product Details
Purity | >99.5% (sublimed) >98.0% (unsublimed) |
Melting point | 173-178 °C (lit.) |
Appearance | White powder |
*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials for OLED devices page.
Chemical Structure
Device Structure(s)
Device structure | ITO(50 nm)/PEDOT:PSS(60 nm)/TAPC(20 nm)/mCP(10 nm)/CbBPCb*(25 nm)/Al(20 nm) [2] |
Colour | Blue |
Max. EQE | ≥ 30% |
Device structure | ITO/PEDOT:PSS/NPB/mCP/FPt*(1.5 nm)/OXD-7/CsF/Al [3] |
Colour | White |
Max. EQE | 17.5% |
Max. Power Efficiency | 45 lm W−1 |
Device structure | ITO(50 nm)/PEDOT:PSS(60 nm)/TAPC(20 nm)/mCP(10 nm)/mCP:BmPyPb*:4CzIPN(25 nm)/TSPO1(35 nm)/LiF(1 nm)/Al(200 nm) [4] |
Colour | Green |
Max. EQE | 28.6% |
Max. Power Efficiency | 56.6 lm W−1 |
Device structure | ITO/DNTPD* (60 nm)/NPB (20 nm)/mCP (10 nm)/mCP:FIrpic (25 nm)/CBP:Ir(piq)2acac (5 nm)/BCP (5 nm)/Alq3 (20 nm)/LiF (1 nm)/Al (200 nm) [5] |
Colour | White |
EQE@500 cd/m2 | 8.2 % |
Current Efficiency@500 cd/m2 | 12.7 lm W−1 |
Device structure | ITO/MoO3 (7nm)/NPB (85 nm)/ (PPQ)2Ir(acac):Ir(ppy)3:FIrpic:mCP/TAZ/LiF/Al [6] |
Colour | White |
Max. EQE | 20.1% |
Max. Power Efficiency | 41.3 lm W−1 |
Device structure | ITO/PEDOT:PSS(40 nm)/mCP:PVK:OXD-7(33:33:22 wt%):(dfpmpy)2Ir(pic-N-O):(F4PPQ)2Ir(pic-N-O):(EO2- Cz-PhQ)2Ir(acac)*(12:0.25:0.15 wt%)(50-60 nm)/TmPyPB(20 nm)/LiF(1 nm)/Al(150 nm) [7] |
Color | White |
Max. EQE | 11.45% |
Max. Current Efficiency | 23.04 cd/A |
Max. Power Efficiency | 8.04 lm W−1 |
*For chemical structure information, please refer to the cited reference.
Pricing
Grade | Order Code | Quantity | Price |
Sublimed (>99.5%) | M371 | 1 g | £89.00 |
Sublimed (>99.5%) | M371 | 5 g | £338.00 |
Unsublimed (>98.0%) | M372 | 5 g | £199.00 |
MSDS Documentation
mCP MSDS sheet
Literature and Reviews
- 100% phosphorescence quantum efficiency of Ir(III) complexes in organic semiconductor films, Y. Kawamura et al., Appl. Phys. Lett. 86, 071104 (2005); http://dx.doi.org/10.1063/1.1862777.
- Above 30% External Quantum Efficiency in Blue Phosphorescent Organic Light-Emitting Diodes Using Pyrido[2,3- b]indole Derivatives as Host Materials, C. Lee et al., Adv. Mater., 25, 5450–5454 (2013).
- Efficient organic light-emitting devices with platinum-complex emissive layer, X. Yang et al., Appl. Phys. Lett., 98, 033302 (2011); doi: 10.1063/1.3541447.
- Engineering of Mixed Host for High External Quantum Efficiency above 25% in Green Thermally Activated Delayed Fluorescence Device, B. Kim et al., Adv. Funct. Mater., 24, 3970–3977 (2014).
- Improved color stability in white phosphorescent organic light-emitting diodes using charge confining structure without interlayer, S-H. Kim et al., Appl. Phys. Lett. 91, 123509 (2007); http://dx.doi.org/10.1063/1.2786853.
- Manipulating Charges and Excitons within aSingle-Host System to Accomplish Efficiency/CRI/Color-Stability Trade-off for High-PerformanceOWLEDs, Q. Wang et al., Adv. Mater., 21, 2397–2401 (2009).
- Single emissive layer white phosphorescent organic light-emitting diodes based on solution-processed iridium complexes, W. Cho et al., Dyes and Pigments, 108, 115-120 (2014), doi:10.1016/j.dyepig.2014.04.033.
- Wide-Energy-Gap Host Materials for Blue Phosphorescent Organic Light-Emitting Diodes, S. Ye et al., Chem. Mater., 21 (7), 1333–1342 (2014).
- High efficiency phosphorescent organic light-emitting diodes using carbazole-type triplet exciton blocking layer, S. Kim et al., Appl. Phys. Lett., 90, 223505 (2007); http://dx.doi.org/10.1063/1.2742788.
- Deep blue phosphorescent organic light-emitting diodes with excellent external quantum efficiency, J. Park et al., Org. Electronics, 14 (12), 3228-3233 (2013), doi:10.1016/j.orgel.2013.09.017.
To the best of our knowledge the technical information provided here is accurate. However, Ossila assume no liability for the accuracy of this information. The values provided here are typical at the time of manufacture and may vary over time and from batch to batch.