mCBP


Order Code: M2186A1
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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

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.

Product Details

Purity

Sublimed >99% (HPLC),

Unsublimed >98% (1H NMR)

Melting point n/a
Appearance White crystals/powder

 

mcbp, 342638-54-4
Chemical Structure of mCBP; CAS No. 342638-54-4

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 green
Max. Power Efficiency 35.6 lm W1
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 white
Max. Power Efficiency 97.1 lm W1
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 blue
Max. Power Efficiency 15.1 lm W1
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 blue
Max. Power Efficiency 32.4 lm W1
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 white
Max. Power Efficiency 56.7 lm W1
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 yellow
Max. Power Efficiency 56.2 lm W1
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 yellow
Max. Power Efficiency 33.0 lm W1
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.