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mCBP-CN

mCBP-CN
Product Code M2345A1
Price $259.00 ex. VAT
$ USD

mCBP-CN, electron transporting host material

Better film morphology and device thermal stability compared to mCBP

mCBP-CN, or 3,3′-di(carbazol-9-yl)-5-cyano-1,1′-biphenyl, has a structure of two carbazole units attached to a biphenyl linker. The only difference that it has to the well known host mCBP is that a polar cyano (CN) group is attached to one of the phenyls. The asymmetrically attached CN group can both increase the ground-state dipole moment and greatly improve film morphology and device thermal stabilities.

The strong electron withdrawing CN group can also effectively alter the electron densities of the orbitals, making mCBP-CN an electron transporting host with deep HOMO/LUMO energy levels (while mCBP is a hole transport host material).

General Information

Full name 3,3′-di(carbazol-9-yl)-5-cyano-1,1′-biphenyl
CAS number n.a.
Chemical formula C37H23N3
Molecular weight 509.60 g/mol
Absorption λmax 326 nm, 335 nm in film
PL λem 412 nm in film
HOMO/LUMO HOMO = 6.10 eV, LUMO = 2.50 eV [1]
Synonyms mCBPCN, 3′,5-di(9H-carbazol-9-yl)-[1,1′-biphenyl]-3-carbonitrile
Classification / Family Carbazole derivatives, Fluorescent and phosphorescent host materials, Sublimed materials

Product Details

Purity Sublimed >99.0% (HPLC)
Melting point mp = 256 °C, Tg = 113 °C
Appearance Pale 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 for OLED devices page.

Chemical Structure

chemical structure of mCBP-CN
Chemical structure of 3,3′-di(carbazol-9-yl)-5-cyano-1,1′-biphenyl (mCBP-CN)

Device Structure(s)

Device structure ITO (50 nm)/HAT-CN (10 nm)/TAPC (40 nm)/mMCP (10 nm)/3 wt% BOBS-Z*:mCBP-CN (30 nm)/PPF (10 nm)/B3PyPB (30 nm)/Liq (1 nm)/Al (100 nm) [2]
Colour blue light emitting device Blue
Max Current Efficiency 15.7 cd/A 
Max. Power Efficiency 24.2 Im/W
Max. EQE 24.2%
Device structure ITO (50 nm)/HAT-CN (10 nm)/TAPC (40 nm)/mMCP (10 nm)/3 wt% BSBS-Z*:mCBP-CN (30 nm)/PPF (10 nm)/B3PyPB (30 nm)/Liq (1 nm)/Al (100 nm) [2]
Colour blue light emitting device Blue
Max Current Efficiency 18.7 cd/A 
Max. Power Efficiency 20.2 Im/W
Max. EQE 24%
Device structure ITO (50 nm)/HAT-CN (10 nm)/TAPC (40 nm)/mMCP (10 nm)/3 wt% ν-DABNA*:mCBP-CN (30 nm)/PPF (10 nm)/B3PyPB (30 nm)/Liq (1 nm)/Al (100 nm) [2]
Colour blue light emitting device Blue
Max Current Efficiency 21.4 cd/A 
Max. Power Efficiency 22.1 Im/W
Max. EQE 22.7%
Device structure ITO/BPBPA* : HATCN (40 nm : 30%)/BPBPA (10 nm)/PCZAC(10 nm)/mCBPCN:oCBP:CNIr (30 nm:50%:10%)/26DBFPTPy* (5 nm)/ZADN (20 nm)/LiF (1.5 nm)/Al (200 nm) [3]
Colour blue light emitting device Blue
Max Current Efficiency 42.0 cd/A 
Max. Power Efficiency 43.9 Im/W
Max. EQE 24.1%
Device structure ITO/BPBPA* : HATCN (40 nm : 30%)/BPBPA (10 nm)/PCZAC(10 nm)/mCBPCN:oCBP:CNIr (30 nm:50%:10%)/26DBTPTPy* (5 nm)/ZADN (20 nm)/LiF (1.5 nm)/Al (200 nm) [3]
Colour blue light emitting device Blue
Max Current Efficiency 41.0 cd/A 
Max. Power Efficiency 42.7 Im/W
Max. EQE 23.6%
Device structure ITO/BPBPA* : HATCN (40 nm : 30%)/BPBPA (10 nm)/PCZAC(10 nm)/mCBPCN:oCBP:CNIr (30 nm:50%:10%)/BmPyPB (5 nm)/ZADN (20 nm)/LiF (1.5 nm)/Al (200 nm) [3]
Colour blue light emitting device Blue
Max Current Efficiency 39.1 cd/A 
Max. Power Efficiency 40.9 Im/W
Max. EQE 22.3%

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

Pricing

Grade Order Code Quantity Price
Sublimed (>99.0% purity) M2345A1 100 mg £199.00
Sublimed (>99.0% purity) M2345A1 250 mg £398.00
Sublimed (>99.0% purity) M2345A1 500 mg £637.00
Sublimed (>99.0% purity) M2345A1 1 g £1050.00

MSDS Documentation

mCBP-CN MSDSmCBP-CN MSDS sheet

Literature and Reviews

  1. An Alternative Host Material for Long-Lifespan Blue Organic Light-Emitting Diodes Using Thermally Activated Delayed Fluorescence, S. Ihn et al., Adv. Sci., 1600502 (2017); DOI: 10.1002/advs.201600502.
  2. Achieving Ultimate Narrowband and Ultrapure Blue Organic Light-Emitting Diodes Based on Polycyclo-Heteraborin Multi-Resonance Delayed-Fluorescence Emitters, I Park et al., Adv. Mater., 34 (9), 2107951 (2022); DOI: 10.1002/adma.202107951.
  3. Novel hole blocking materials based on 2,6-disubstituted dibenzo[b,d]furan and dibenzo[b,d]thiophene segments for high-performance blue phosphorescent organic light-emitting diodes, S. Jang et al.,  J. Mater. Chem. C, 7, 826 (2019); DOI: 10.1039/c8tc04900a.
  4. Rigid Oxygen-Bridged Boron-Based Blue Thermally Activated Delayed Fluorescence Emitter for Organic Light-Emitting Diode: Approach towards Satisfying High Efficiency and Long Lifetime Together, D. Ahn et al., Adv. Optical Mater., 8 (11), 2000102 (2020); DOI: 10.1002/adom.202000102.
  5. Photophysics of TADF Guest−Host Systems: Introducing the Idea of Hosting Potential, K. Stavrou et al., ACS Appl. Electron. Mater., 2, 9, 2868–2881 (2020); DOI: 10.1021/acsaelm.0c00514.

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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