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Product Code M2119A1-250mg
Price £250 ex. VAT

BCzPh, electron-rich host material for highly-efficient PhOLEDs

High-purity (>99.0%) and available online for priority dispatch

9,9'-Diphenyl-9H,9'H-3,3'-bicarbazole (BCzPh), with two conjugated carbazole units, is an electron-rich host material used for phosphorescent organic light-emitting diodes (PHOLEDs). Being electron-rich, BCzPh is also used as an electron donor to form exciplexes either as an emitting layer or host material for highly-efficient fluorescent and phosphorescent OLED devices.

With the dimerisation of carbazoles (and thus the blocked 3 and 3') positions, BCzPh can greatly reduce the host-host aggregation, causing excimer formation. With a higher Tg, it can also improve thermal and morphological stability of thin films.

BCzPh is an isomer of CBP and mCBP which are used as universal host materials for blue, red, green and white electroluminescent OLED devices.

General Information

CAS number 57102-62-2
Full name 9,9'-Diphenyl-9H,9'H-3,3'-bicarbazole
Chemical formula C36H24N2
Molecular weight 484.59 g/mol
Absorption λmax 303 nm in DCM
Fluorescence λmax 391, 408 nm in DCM
HOMO/LUMO HOMO 5.67 eV, LUMO 2.3 eV [1]
Classification / Family Carbazole derivatives, Light-emitting diodes, Organic electronics, PHOLED host materials, Sublimed materials.

Product Details

Purity Sublimed >99.0% (HPLC)
Melting point

TGA: 340 °C (0.5% weight loss)

Tg = 100 °C

Appearance Off-white crystals/powder

*Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the Sublimed Materials.

Chemical Structure

bczph chemical structure
Chemical Structure of BCzPh

Device Structure(s)

Device structure BCzPh:FIrpic (8%, 20 nm)/TmPyPB (50 nm)/Liq (2 nm)/Al (120 nm) [1]
Colour Blue blue light emitting device
Max Current Efficiency 34.3 cd/A
Max EQE 14.4%
Max. Power Efficiency 32.5 lm W-1
Device structure ITO (130 nm)/ TAPC (40 nm)/BCzPh:FIrpic (11 w%, 10 nm)/ B3PyPB (50 nm)/ LiF (1 nm)/ Al (100 nm) [2]
Colour Blue blue light emitting device
Current Efficiency@100 cd/m2 43.9 cd/A 
Max EQE@100 cd/m2 19.8%
Power Efficiency@100 cd/m2 45.2 lm W-1
Device structure ITO (80 nm)/HAT-CN (10 nm)/TAPC (30 nm)/BCzPh (10 nm)/BCzPh:3P-T2T (30 nm; 2:1)/3P-T2T (70 nm)/LiF (1 nm)/Al (100 nm) [3]
Colour Green green light emitting device
Max EQE 11.7%
Max. Power Efficiency 44.9 lm W-1
Device structure ITO (80 nm)/HAT-CN (10 nm)/TAPC (30 nm)/BCzPh (10 nm)/ BCzPh:3PT2T:8 wt % Ir(ppy)2(acac)/3P-T2T (70 nm)/LiF (1 nm)/Al (100 nm) [3]
Colour Green green light emitting device
Max EQE 25.8%
Max. Power Efficiency 143.4 lm W-1
Device structure ITO/MoO3 (3 nm)/TAPC (35 nm)/TCTA (5 nm)/BCzPh:10 w%FIrPic (20 nm)/TmPyPB (50 nm)/LiF (0.5 nm)/Mg:Ag (15:1, 120 nm) [4]
Colour Blue blue light emitting device
Max Current Efficiency 23.8 cd/A 
Max Luminescence 11,570 cd/m2
Max. Power Efficiency 22.1 lm W-1
Device structure ITO/MoO(3 nm)/TAPC (35 nm)/TCTA (5 nm)/BCzPh:7 w%PO-01 (20 nm)/TmPyPB (50 nm)/LiF (0.5 nm)/Mg:Ag (15:1, 120 nm) [4]
Colour Yellow yellow device
Max Current Efficiency 33.2 cd/A 
Max Luminescence 26,740 cd/m2
Max. Power Efficiency 29.8 lm W-1

*For chemical structure information, please refer to the cited references


Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2119A1 250 mg £250
Sublimed (>99.0% purity) M2119A1 500 mg £400
Sublimed (>99.0% purity) M2119A1 1 g £680

MSDS Documentation


Literature and Reviews

  1. Bipolar host materials for high efficiency phosphorescent organic light emitting diodes: tuning the HOMO/LUMO levels without reducing the triplet energy in a linear system, L. Cui et al., J. Mater. Chem. C, 1, 8177-8185 92013); DOI: 10.1039/C3TC31675K.
  2. 3,3′-Bicarbazole-Based Host Materials for High-Efficiency Blue Phosphorescent OLEDs with Extremely Low Driving Voltage, H. Sasabe et al., Adv. Mater., 24, 3212–3217 (2012); DOI: 10.1002/adma.201200848.
  3. Lifetime of Fluorescent and Phosphorescent Organic Light-Emitting
    Diodes, C-J. Shih et al., ACS Appl. Mater. Interfaces, 10, 24090−24098 (2018); DOI: 10.1021/acsami.8b08281.
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