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Product Code M2334A1-250mg
Price $450 ex. VAT

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BCzTPA, electron-rich host material for PhOLEDs

High purity (>99.0%) material available in 3 different quantities


BCzTPA - 4,4'-(9H,9'H-3,3'-Bicarbazole-9,9'-diyl)bis(N,N-diphenylaniline) has a similar structure to BCzPh with the only difference that BCzTPA has triphenylamines groups attached to the 9H and 9H'-positions of 3,3'-bicarbazole unit, while BCzPh has phenyl groups.

Like BCzPh, BCzTPA is also used as an electron-rich host material for phosphorescent organic light-emitting diodes (PHOLEDs). Extremely low operating voltage green PhOLEDs showing 5000 cd/m2 below 3 V can be created when 17 wt% Ir(ppy)3 doped BCzTPA is used as active layer materials. Being electron-rich, BCzTPA can also potentially be used as an electron donor to form exciplexes either as an emitting layer or host material for highly-efficient fluorescent and phosphorescent OLED devices.

General Information

CAS number 1032174-52-9
Full name 4,4'-(9H,9'H-3,3'-Bicarbazole-9,9'-diyl)bis(N,N-diphenylaniline)
Chemical formula C60H42N4
Molecular weight 819.00 g/mol
Absorption λmax 310nm, 341 nm (in film)
Phosphorescene λmax 397 nm (in film)
HOMO/LUMO HOMO 5.60 eV, LUMO 2.20 eV [1]
Synonyms 4,4'-[3,3'-bi-9H-carbazole]-9,9'-diylbis[N,N-diphenyl-benzenamine]
Classification / Family Carbazole derivatives, TADF Light-emitting diodes, Organic electronics, Hole transport Layer (ETL), PHOLEDs host materials, Sublimed materials.

Product Details

Purity Sublimed >99.0% (HPLC)
Melting point Tg = 157 °C, Tm = 239 °C
Appearance White powder/crystals

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

Chemical Structure

BCzTPA chemical structure, 4,4'-(9H,9'H-3,3'-Bicarbazole-9,9'-diyl)bis(N,N-diphenylaniline)
Chemical structure of 4,4'-(9H,9'H-3,3'-Bicarbazole-9,9'-diyl)bis(N,N-diphenylaniline) (BCzTPA), CAS# 1032174-52-9.

Device Structure(s)

Device structure ITO (130 nm)/HATCN (1 nm)/TAPC (50nm)/17 wt% Ir(ppy)3:BCzTPA (10 nm)/B4PyPPM (50 nm)/Libpp (1 nm)/Al (80 nm) [1]
Colour green light emitting device Green
Current Efficiency@100 cd/m2 78.6 cd/A
Power Efficiency@100 cd/m2  94.3 lm W-1
EQE@100 cd/m2 22.1%
Device structure ITO (130 nm)/HATCN (1 nm)/TAPC (50 nm)/17 wt% Ir(ppy)3:BCzTPA (5 nm) /25 wt% Ir(ppy)3:CBP (5 nm)/B4PyPPM (50 nm)/Libpp (1 nm)/Al (80 nm) [1]
Colour green light emitting device Green
Current Efficiency@100 cd/m2 84.2 cd/A
Power Efficiency@100 cd/m2 117.6 lm W-1
EQE@100 cd/m2 23.5%
Device structure ITO (130 nm)/PEDOT:PSS (30 nm)/TFB (20 nm)/BCzTPh:BCzTPA:12 wt% Ir(ppy)3 (30 nm)/BPOPB (45 nm)/Liq (1 nm)/Al (100 nm) [3]
Colour green light emitting device Green
Current Efficiency@100 cd/m2 78 cd/A
Power Efficiency@100 cd/m2 52 lm W-1
EQE@100 cd/m2 22%
Device structure ITO (130 nm)/PEDOT:PSS (30 nm)/TFB (20 nm)/BCzTPh:BCzTPA:12 wt% FiRPic (30 nm)/BPOPB (45 nm)/Liq (1 nm)/Al (100 nm) [3]
Colour blue light emitting device Blue
Current Efficiency@100 cd/m2 43 cd/A
Power Efficiency@100 cd/m2 36 lm W-1
EQE@100 cd/m2 20%
Device structure ITO (130 nm)/PEDOT:PSS (30 nm)/TFB (20 nm)/BCzTPh:BCzTPA (1:1):12wt% Ir(Fppy)3:0.2wt% Ir(ppy)3:0.7wt% Ir(phq)3 (30 nm)/BPOPB (50 nm)/Liq (1 nm)/Al (100 nm) [3]
Colour white light emitting device White
Current Efficiency@100 cd/m2 43 cd/A
Power Efficiency@100 cd/m2 35 lm W-1
EQE@100 cd/m2 20%

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

Pricing

Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2334A1 250 mg £360
Sublimed (>99.0% purity) M2334A1 500 mg £600
Sublimed (>99.0% purity) M2334A1 1 g £1050

MSDS Documentation

BCzTPA MSDSBCzTPA MSDS Sheet

Literature and Reviews

  1. Extremely Low Operating Voltage Green Phosphorescent Organic Light-Emitting Devices showing 5000 cd m–2 below 3 V, H. Sasabe et al., Adv. Funct. Mater., 23 (44), 5550-5555 (2013); DOI: 10.1002/adfm.201301069.
  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 (24), 3212-3217 (2012); DOI: 10.1002/adma. 201200848.
  3. Solution-processed multilayer small-molecule light-emitting devices with high-efficiency white-light emission, N. Aizawa et al., Nat Commun 5, 5756 (2014); DOI: 10.1038/ncomms6756.

To the best of our knowledge the information provided here is accurate. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. Products may have minor cosmetic differences (e.g. to the branding) compared to the photos on our website. All products are for laboratory and research and development use only.

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