FREE shipping to on qualifying orders when you spend or more, processed by Ossila BV. All prices ex. VAT. Qualifying orders ship free worldwide! Fast, secure, and backed by the Ossila guarantee. It looks like you are visiting from , click to shop in or change country. Orders to the EU are processed by our EU subsidiary.

It looks like you are using an unsupported browser. You can still place orders by emailing us on info@ossila.com, but you may experience issues browsing our website. Please consider upgrading to a modern browser for better security and an improved browsing experience.


Product Code M371-1g
Price £130 ex. VAT

mCP, often used as a host material for efficient blue phosphorescent LEDs

Increases the photoluminescence internal quantum yield of FIrpic


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


chemical structure of mCP
Chemical structure of 1,3-Bis(N-carbazolyl)benzene (mCP)

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 blue light emitting device
Max. EQE ≥ 30%
Device structure ITO/PEDOT:PSS/NPB/mCP/FPt*(1.5 nm)/OXD-7/CsF/Al [3]
Colour White white light emitting device
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 green light emitting device
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 white light emitting device
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 white light emitting device
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 white light emitting device
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.

When fabricating devices, processing and handling materials in a glove box helps maintain their purity and maintain efficiency by avoiding contamination from particulates, moisture, and airborne impurities.

Pricing


Grade Order Code Quantity Price
Sublimed (>99.5%) M371 1 g £130
Sublimed (>99.5%) M371 5 g £500
Unsublimed (>98.0%) M372 5 g £260

MSDS Documentation


mCP MSDSmCP MSDS sheet

Literature and Reviews


  1. 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.
  2. 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).
  3. 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.

Return to the top