mCBP

Pricing

General Information

Product Details

Applications

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.

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

Literature and Reviews

1. 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.
2. 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.
3. 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.
4. 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.
5. 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.
6. High-efficiency organic light-emitting diodes with fluorescent emitters, H. Nakanotani et al., Nat. Commun., 5, 4016 (2014); DOI: 10.1038/ncomms5016.