CbBPCb

CAS Number 1469997-91-8

MSDS

CbBPCb, highly efficient bipolar phosphorescent host

Can achieve high quantum efficiencies in blue PhOLEDs, 3,3'-Di(9H-pyrido[2,3-b]-indol-9-yl)biphenyl, CAS No. 1469997-91-8

CbBPCb, having similar structure to the well-known host material mCBP, is a highly efficient carboline-based phosphorescent host with oligophenyl spacer. CbBPCb is bipolar, but shows a higher electron mobility of 3.83×10^-6 cm² V^-1 s^-1 than its hole mobility of 6.33×10^-7 cm² V^-1 s^-1.

With a wide bandgap and high triplet energy level, CbBPCb can achieve high quantum efficiencies of over 30.0% in blue phosphorescent organic light emitting diodes. This is due to the host-guest energy transfer, balanced charge injection / transporting and effective exciton confinement within the emitting layer [1, 2]

General Information

CAS number	1469997-91-8
Chemical formula	C₃₄H₂₂N₄
Molecular weight	486.57 g/mol
Absorption	λ_max 240 nm, 297 nm (THF)
Photoluminescence	λ_em 382 nm (THF)
HOMO/LUMO	HOMO = 6.25 eV, LUMO = 2.79 eV; E_T = 2.77 eV [1]
Chemical name	3,3'-Di(9H-pyrido[2,3-b]-indol-9-yl)biphenyl
Synonyms	mCbBP
Classification / Family	Carboline derivatives, Phosphorescent host materials, Sublimed materials, Semiconducting small molecules

Product Details

Purity	Sublimed >99.0% (HPLC)
Melting point	mp = 251 °C, T_g = 96 °C (lit.)
Appearance	Off-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

cbbpcb, 1469997-91-8 — Chemical structure of 3,3'-Di(9H-pyrido[2,3-b]-indol-9-yl)biphenyl (CbBPCb), CAS 1469997-91-8

Device Structure(s)

Device structure	ITO (50 nm)/PEDOT:PSS (60 nm)/TAPC (20 nm)/mCP (10 nm)/CbBPCb:10wt% FIrpic (25 nm)/TSPO1 (35 nm)/LiF (1 nm)/Al (200 nm) [2]
Colour	Blue
Max. Current Efficiency	53.6 cd/A
Max. EQE	30.1
Max. Power Efficiency	50.6 Im/W

Pricing

Grade	Order Code	Quantity	Price
Sublimed (>99.0% purity)	M2289A1	100 mg	$299
Sublimed (>99.0% purity)	M2289A1	250 mg	$598
Sublimed (>99.0% purity)	M2289A1	500 mg	$1,040
Sublimed (>99.0% purity)	M2289A1	1 g	$1,820

MSDS Documentation

CbBPCb MSDS sheet

Literature and Reviews

Above 30% External Quantum Efficiency in Blue Phosphorescent Organic Light-Emitting Diodes Using Pyrido[2,3-b]indole Derivatives as Host Materials, C. Lee et al., Adv. Mater., 25(38), 5450-4 (2013); DOI: 10.1002/adma.201301091.
FIrpic: archetypal blue phosphorescent emitter for electroluminescence, E. Baranoff et al., Dalton Trans. 44, 8318-8329 (2015); DOI: 10.1039/C4DT02991G.
Functionalization of phosphorescent emitters and their host materials by main-group elements for phosphorescent organic light-emitting devices, X. Yang et al., Chem. Soc. Rev., 44, 8484-8575 (2015); DOI: 10.1039/C5CS00424A.

High quantum efficiency and color stability in white phosphorescent organic light-emitting diodes using carboline derivative as a host material, B. Kim et al., Org. Electronics, 14 (11), 3024-3029 (2013); DOI: 10.1016/j.orgel.2013.09.005.
A versatile efficient one-step approach for carbazole–pyridine hybrid molecules: highly efficient host materials for blue phosphorescent OLEDs, C. Tang et al., Chem. Commun., 51, 1650-1653 (2015); DOI: 10.1039/C4CC08335K.
Low-Driving-Voltage Blue Phosphorescent Organic Light-Emitting Devices with External Quantum Efficiency of 30%, K. Udagawa et al., 26 (29), 5062-5066 (2014); DOI: 10.1002/adma.201401621.