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Product Code M2353A1
Price $238.00 ex. VAT

Fluorescent host for blue, green and red light emitting active layer materials

High purity (>99% sublimed) mCPBC in quantities from 100 mg to 1 g

mCPCB, 9-(3-(9H-carbazol-9-yl)phenyl)-9H-3,9'-bicarbazole, has a structure of carbazole and 3-9'-bicarbazole attached to a phenyl ring at meta-positions.

Having three conjugated carbazolyl units and a wide band gap, mCPCB is electron rich and it is normally used as fluorescent host for blue, green and red light emitting active layer materials. Like mCP and SimCP, mCPCB is a hole transport dominating host with low polarity. mCPCB has been proven a great match as the host material to DABNA dopant derivatives for highly efficient blue emitting TADF devices.

General Information

CAS number 1799525-58-8
Chemical formula C42H27N3
Molecular weight 573.68 g/mol
Absorption λmax 338 nm (in toluene)
Fluorescence λem 446 nm (in toluene)
HOMO/LUMO HOMO = 5.70 eV, LUMO = 1.70 eV
Full name 9-(3-(9H-carbazol-9-yl)phenyl)-9H-3,9'-bicarbazole
Synonyms mCPCz
Classification / Family Carbazole derivatives, Host materials, Hole transporting materials, OLEDs, Organic electronics

Product Details

Purity Sublimed* >99.0%
Melting point n.a.
Colour White Powder

Sublimation is a technique used to obtain ultra pure-grade chemicals. For more details about sublimation, please refer to the sublimed materials for OLED devices collection page.

Chemical Structure

mCPBC chemical structure
Chemical structure of 9-(3-(9H-carbazol-9-yl)phenyl)-9H-3,9'-bicarbazole (mCPCB), CAS 1799525-58-8

Device Structure(s)

Device structure ITO/HATCN (5 nm)/NPB (30 nm)/TCTA (10 nm)/mCPBC:30 wt% 33PCX:1 wt% v-DABNA (30 nm)/CzPhPy (10 nm)/DPyPA:Liq (1:1, 30 nm)/LiF (0.5 nm)/Al (150 nm) [1]
Colour blue light emitting device Blue
Max. EQE 27.5%
Max. Power Efficiency 39.7 lm W1
Device structure ITO/HATCN (5 nm)/NPB (30 nm)/TCTA (10 nm)/mCPBC:30 wt% 23PCX:1 wt% v-DABNA (30 nm)/CzPhPy (10 nm)/DPyPA:Liq (1:1, 30 nm)/LiF (0.5 nm)/Al (150 nm) [1]
Colour blue light emitting device Blue
Max. EQE 25.2%
Max. Power Efficiency 53.5 lm W1
Device structure ITO/ HATCN(5 nm)/NPB(30 nm)/BCzPh(10 nm)/mCPBC: 20 wt% d-5CzBN (24 nm)/CzPhPy (10 nm)/DPPyA (30 nm)/LiF (0.5 nm)/Al (150 nm) [2]
Colour blue light emitting device Blue
Max. EQE 27.8%
Max. Power Efficiency 57.3 lm W1
Device structure ITO/ HATCN (5 nm)/NPB (30 nm)/ BCzPh (10 nm)/mCPBC: 20 wt% d-5CzBN: 1 wt% CzDABNA-NP-TB (24 nm)/CzPhPy (10 nm)/DPPyA (30 nm)/LiF (0.5 nm)/ Al (150 nm) [2]
Colour blue light emitting device Blue
Max. EQE 30.3%
Max. Power Efficiency 50.9 lm W1
Device structure TO/HAT-CN (10 nm)/NPB (30 nm)/BCzPh (10 nm)/mCPCB:35 wt% 5T:12 wt % 2F-BN (20 nm)/9Cz46Pm (10 nm)/DPPyA:Liq(1:1, 30 nm)/LiF (0.5 nm)/Al (150 nm) [3] 
Colour green light emitting device Green
Max. EQE 21.58%
Max. Power Efficiency 72.05 lm W1


 Grade Order Code Quantity Price
Sublimed (>99%) M2353A1 100 mg £190
Sublimed (>99%) M2353A1 250 mg  £380
Sublimed (>99%) M2353A1 500 mg £620
Sublimed (>99%) M2353A1 1 g £950

MSDS Documentation


Literature and Reviews

  1. Highly Efficient and Stable Blue Organic Light-Emitting Diodes based on Thermally Activated Delayed Fluorophor with Donor-Void-Acceptor Motif, D. Zhang et al., Adv. Sci., 9, 2106018 (2022); DOI: 10.1002/advs.202106018.
  2. Boosting the Efficiency and Stability of Blue TADF Emitters by Deuteration, ChemRxiv. 2021; DOI: 10.26434/chemrxiv-2021-hrlf1.
  3. Multi-Resonance Induced Thermally Activated Delayed Fluorophores for Narrowband Green OLEDs, Y. Zhang et al., Angew. Chem., Intl. ed., 58 (47), 16912-16917 (2019); DOI: 10.1002/anie.201911266.
  4. Color-Tunable All-Fluorescent White Organic Light-Emitting Diodes with a High External Quantum Efficiency Over 30% and Extended Device Lifetime, C. Zhang et al., Adv. Mater., 2103102 (2021); DOI: 10.1002/adma.202103102.
  5. Modulation of Förster and Dexter Interactions in Single-Emissive-Layer All-Fluorescent WOLEDs for Improved Efficiency and Extended Lifetime, P. Wei et al., Adv. Funct. Mater., 30 (6), 1907083 (2019); DOI: 10.1002/adfm.201907083.
  6. Approaching Nearly 40% External Quantum Efficiency in Organic Light Emitting Diodes Utilizing a Green Thermally Activated Delayed Fluorescence Emitter with an Extended Linear Donor–Acceptor–Donor Structure, Y. Chen et al., Adv. Mater., 33 (44), 2103293 (2021); DOI: 10.1002/adma.202103293.

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.

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