mCBP
mCBP, host material for blue, green, orange, and yellow fluorescent and phosphorescent emitters
Applications in OLED and TADF-OLED devices, now available online for priority dispatch
mCBP, 3,3′-Di(9H-carbazol-9-yl)-1,1′-biphenyl, is an isomer of CBP, 4,4′-Di(9H-carbazol-9-yl)-1,1′-biphenyl. The meta-linkage in mCBP limits conjugation to the central biphenyl, preventing excimer formation and thus resulting in a higher triplet energy of 2.8 eV.
Like CBP and CDBP, mCBP is widely used in OLED and TADF-OLED devices as a host material for blue, green, orange, and yellow fluorescent and phosphorescent emitters.
With two carbazole units, mCBP is electron-rich and can be used to form exciplexes with electron acceptors (such as POT2T) as blue emitters.
General Information
| CAS number | 342638-54-4 |
|---|---|
| Full name | 3,3′-Di(9H-carbazol-9-yl)-1,1′-biphenyl |
| Chemical formula | C36H24N2 |
| Molecular weight | 484.59 g/mol |
| Absorption | λmax 340 nm in toluene |
| Fluorescence | n/a |
| HOMO/LUMO | HOMO = 6.0 eV, LUMO = 2.4 eV [1] |
| Synonyms | n/a |
| Classification / Family | Carbazole derivatives, fluorescent host materials, blue exciplex host materials, sublimed materials, OLED-TADF, Organic electronics. |
* Measurable with an optical spectrometer, see our spectrometer application notes.
Product Details
| Purity |
Sublimed* >99% (HPLC), Unsublimed >98% (1H NMR) |
|---|---|
| Melting point | n/a |
| Appearance | White crystals/powder |
* Sublimation is a technique used to obtain ultra pure-grade chemicals, see sublimed materials for OLED devices.
Chemical Structure
Device Structure(s)
| Device structure | ITO/ZnO (20 nm)/10 wt% Cs2CO3:BPhen (20 nm)/BPhen (20 nm)/10 wt% TXO-PhCz:mCBP (30 nm)/TAPC (40 nm)/MoO3 (10 nm)/Al (100 nm) [1] |
|---|---|
| Colour | Green 
|
| Max. Power Efficiency | 35.6 lm W−1 |
| Max. Current Efficiency | 53.9 cd/A |
| Max. EQE | 16.4% |
| Device structure | ITO/HATCN (15 nm)/TAPC (60 nm)/TCTA (5 nm)/mCBP (5 nm)/mCBP:POT2T:Ir(tptpy)2acac (1:1:0.2%, 15 nm)/POT2T (45 nm)/Liq (1.5 nm)/Al (150 nm) [2] |
|---|---|
| Colour | White 
|
| Max. Power Efficiency | 97.1 lm W−1 |
| Max. Current Efficiency | 74.2 cd/A |
| Max. EQE | 22.45% |
| Device structure | ITO (50 nm)/NPD (40 nm)/TCTA (15 nm)/mCP) (15 nm)/1 wt% DABNA-2*:mCBP (20 nm)/TSPO1* (40 nm)/LiF (1 nm)/Al (100 nm) [3] |
|---|---|
| Colour | Blue 
|
| Max. Power Efficiency | 15.1 lm W−1 |
| Max. Current Efficiency | 21.1 cd/A |
| Max. EQE | 20.2% |
| Device structure | ITO/HATCN (10 nm)/NPD (30 nm)/TAPC (10 nm)/ 2 % Pt7O7*:mCBP (25 nm)/DPPS (10 nm)/BmPyPB (40 nm)/LiF/Al [4] |
|---|---|
| Colour | Blue
|
| Max. Power Efficiency | 32.4 lm W−1 |
| Max. EQE | 26.3% |
| Device structure | ITO/HATCN (10 nm)/NPD (30 nm)/TAPC (10 nm)/ 18 % Pt7O7*:mCBP (25 nm)/DPPS (10 nm)/BmPyPB (40 nm)/LiF/Al [4] |
|---|---|
| Colour | White
|
| Max. Power Efficiency | 56.7 lm W−1 |
| Max. EQE | 24.1% |
| Device structure | ITO (50 nm)/NPD (40 nm)/TCTA (15 nm)/mCP) (15 nm)/1 wt% DABNA-2*:mCBP (20 nm)/TSPO1* (40 nm)/LiF (1 nm)/Al (100 nm) [5] |
|---|---|
| Colour | Yellow 
|
| Max. Power Efficiency | 56.2 lm W−1 |
| Max. Current Efficiency | 66.2 cd/A |
| Max. EQE | 23.2% |
| Device structure | ITO/TAPC (35 nm)/1 wt%-TBRb:25 wt%-PXZ-TRX*:mCBP (30 nm)/T2T (10 nm)/Alq3 (55 nm)/LiF (0.8 nm)/Al (100 nm) [6] |
|---|---|
| Colour | Yellow
|
| Max. Power Efficiency | 33.0 lm W−1 |
| Max. Current Efficiency | 56.0 cd/A |
| Max. EQE | 17.2% |
*For chemical structure information, please refer to the cited references
Pricing
| Grade | Order Code | Quantity | Price |
|---|---|---|---|
| Sublimed (>99% purity) | M2186A1 | 500 mg | £196.00 |
| Sublimed (>99% purity) | M2186A1 | 1 g | £312.00 |
| Sublimed (>99% purity) | M2186A1 | 5 g | £1250.00 |
| Unsublimed (>98% purity) | M2186B1 | 1 g | £156.00 |
| Unsublimed (>98% purity) | M2186B1 | 5 g | £624.00 |
MSDS Documentation
mCBP MSDS sheetLiterature and Reviews
- n-Doping-induced efficient electron-injection for high efficiency inverted organic light-emitting diodes based on thermally activated delayed fluorescence emitter, Y. Chen et al., J. Mater. Chem. C, 5, 8400 (2017); DOI: 10.1039/c7tc02406a.
- High efficiency (~ 100 lm W-1) hybrid WOLEDs by simply introducing ultrathin non-doped phosphorescent emitters in a blue exciplex host, S, Ying et al., J. Mater. Chem. C, 6, 7070 (2018); DOI: 10.1039/c8tc01736k.
- Ultrapure Blue Thermally Activated Delayed Fluorescence Molecules: Efficient HOMO–LUMO Separation by the Multiple Resonance Effect, T. Hatakeyama et al., Adv. Mater., 28, 2777–2781 (2016); DOI: 10.1002/adma.201505491.
- Efficient and Stable White Organic Light-Emitting Diodes Employing a Single Emitter, G. Li et al., Adv. Mater., 26, 2931–2936 (2014); DOI: 10.1002/adma.201305507.
- Aromatic-Imide-Based Thermally Activated Delayed Fluorescence Materials for Highly Efficient Organic Light-Emitting Diodes, M. Li et al., Angew. Chem. Int. Ed., 56, 8818 –8822 (2017); DOI: 10.1002/anie.201704435.
- High-efficiency organic light-emitting diodes with fluorescent emitters, H. Nakanotani et al., Nat. Commun., 5, 4016 (2014); DOI: 10.1038/ncomms5016.
To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.