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Merck
CN

925772

N,N′-Tetra(4-biphenyl)benzidine

≥97%

Synonym(s):

TBBDAz

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About This Item

Empirical Formula (Hill Notation):
C60H44N2
CAS Number:
164724-35-0
Molecular Weight:
793.00
UNSPSC Code:
12352116
NACRES:
NA.21
MDL number:
MFCD11977303

Key Documents

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SMILES string

N(c5ccc(cc5)c6ccc(cc6)N(c9ccc(cc9)c%10ccccc%10)c7ccc(cc7)c8ccccc8)(c3ccc(cc3)c4ccccc4)c1ccc(cc1)c2ccccc2

InChI

1S/C60H44N2/c1-5-13-45(14-6-1)49-21-33-55(34-22-49)61(56-35-23-50(24-36-56)46-15-7-2-8-16-46)59-41-29-53(30-42-59)54-31-43-60(44-32-54)62(57-37-25-51(26-38-57)47-17-9-3-10-18-47)58-39-27-52(28-40-58)48-19-11-4-12-20-48/h1-44H

InChI key

WXAIEIRYBSKHDP-UHFFFAOYSA-N

description

PL: 425 nm (in DCM)

assay

≥97%

form

powder

color

white to light yellow

orbital energy

HOMO 5.3 eV , LUMO 2.2 eV 

UV absorption

λ: 357 nm Amax: in DCM

Quality Level

100

Application

Having N,N′-bis-(3-methylphenyl)-N,N′-bis-phenyl-benzidine (TPD) like unit, TBBDA (BPBPA) is electron-rich. As a result, it is used as a hole-transport material in organic light-emitting diodes (OLED).
Example of OLED Device Performance:
ITO/DNTPD (60 nm)/BPBPA (30 nm)/mCBP (10 nm)/mCBP:Ir(dbi)3 (30 nm)/LG201 (35 nm)/
LiF (1 nm)/Al (200 nm)
Color: blue
EQE: Not known
Turn-On Voltage: 2.8V
Max. Luminance: ~ 9900 Cd/m2

Besides, for organic solar cell (OSCs) applications, its highest occupied molecular orbital energy value at 5.3 eV is well matched with a donor layer and its high mobility of 1.74 × 10-2 cm2/Vs brings out an easy and rapid extraction of holes from the donor material.
N,N′-Tetra(4-biphenyl)benzidine can be used as an emissive layer or hole transporting material in studies such as organic light-emitting diodes (OLEDs), photovoltaics, organic field-effect transistors (OFETs).

Storage Class

11 - Combustible Solids

wgk

WGK 3

Regulatory Information

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Certificates of Analysis (COA)

Lot/Batch Number
MKCR2051

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Four times lifetime improvement of blue phosphorescent organic light-emitting diodes by managing recombination zone.
Jeon S K, et al.
Organic Electronics, 27, 202-206 (2015)
Superb lifetime of blue organic light-emitting diodes through engineering interface carrier blocking layers and adjusting electron leakage and an unusual efficiency variation at low electric field.
Kim T,et al.
Journal of Material Chemistry C, 6, 8472-8478 (2018)

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