Spend or more for FREE tracked shipping to , normally .
For more information, please see our worldwide shipping page.
Make sure your lab is fully equipped and stock up on high-quality materials, accessories, and consumables with our large order discounts. Spend over £8,000 for an 8% discount or spend over £10,000 for a 10% discount.
2,2'-bis(4-(carbazol-9-yl)phenyl)-biphenyl (BCBP) has a bridged biphenyl structure with two electron rich carbazolyl pendant moieties. The bridged structure is believed to enhance the conjugation and raise the HOMO energy level, facilitating hole-injection and leading to low turn-on voltages in organic photoelectroluminescent devices.
Comparing with 4,4′-(bis(9-carbazolyl))biphenyl (CBP), a well known host material, BCBP is thermally more stable with a high glass transition temperature (Tg) of 173 °C, while CBP has a relatively low Tgof 69 °C.
Carbazolyl groups are largely embedded in both fluorescent and phosphorescent host materials because of their higher triplet energy levels and higher hole mobility. Like the rest of the family members such as CDBP and mCBP, BCBP is commonly used as host material for blue, green, red phosphorescent dopants for highly efficient OLED devices.
λmax 325 nm in DCM
λem 373 nm in DCM
HOMO = 6.1 eV, LUMO = 2.6 (Eg = 3.5 eV; ET = 2.8 eV)
Classification / Family
Organic electronics, Hole transport layer materials (HTL), Fluorescent and phosphorescent host materials, TADF-OLEDs, Sublimed materials.
Nearly 100% Internal Quantum Efficiency in an Organic Blue-Light Electrophosphorescent Device Using a Weak Electron Transporting Material with a Wide Energy Gap, L Xiao et al., Adv. Mater., 21, 1271–1274 (2009); DOI: 10.1002/adma.200802034.
Diarylmethylene-bridged 4,4′-(bis(9-carbazolyl))biphenyl: morphological stable host material for highly efficient electrophosphorescence, Z. Jiang et al., J. Mater. Chem., 19, 7661-7665 (2009); DOI: 10.1039/B910247G.
Towards Highly Efficient Blue-Phosphorescent Organic Light-EmittingDiodes with Low Operating Voltage and Excellent Efficiency Stability, C. Han et al., Chem. Eur. J., 17, 445 – 449 (2011); DOI: 10.1002/chem.201001981.
Organic host materials for phosphorescent organic light-emitting diodes, Y. Tao et al., Chem. Soc. Rev., 40, 2943-2970 (2011); DOI: 10.1039/C0CS00160K.
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.