Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

734594

Sigma-Aldrich

N,N′-Di(1-naphthyl)-N,N′-diphenyl-(1,1′-biphenyl)-4,4′-diamine

96%

Synonym(s):

N,N′-Bis(naphthalen-1-yl)-N,N′-bis(phenyl)benzidine, NPB, NPD

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
C44H32N2
CAS Number:
123847-85-8
Molecular Weight:
588.74
MDL number:
MFCD03093246
UNSPSC Code:
12352103
PubChem Substance ID:
329764912
NACRES:
NA.23

Quality Level

100

Assay

96%

form

solid

mp

275-280 °C
279-283 °C (lit.)

Orbital energy

HOMO 5.5 eV 
LUMO 2.4 eV 

OLED Device Performance

ITO/NPD/TCTA/BCPO:Ir(piq)3 (7-8%)/BCP/Alq3/LiF/Al

  • Color: red
  • Max. Luminance: 24529 Cd/m2
  • Max. EQE: 17 %
  • Turn-On Voltage: 2.7 V

ITO/NPD/TCTA/BCPO:Ir(ppy)3 (7-8%)/BCP/Alq3/LiF/Al
  • Color: green
  • Max. Luminance: 207839 Cd/m2
  • Max. EQE: 21.6 %
  • Turn-On Voltage: 2.1 V

ITO/NPD/mCP/BCPO:FIrpic (8%)/TAZ/LiF/Al
  • Color: blue
  • Max. Luminance: 35677 Cd/m2
  • Max. EQE: 23.5 %
  • Turn-On Voltage: 2.8 V

ITO/PEDOT:PSS/NPD/TCTA/m-CBTZ:Ir(Bt)2(acac) (10%)/TPBI/LiF/Al
  • Color: yellow
  • Max. Luminance: 106000 Cd/m2
  • Max. EQE: 17.5 %
  • Turn-On Voltage: 3 V

SMILES string

c1ccc(cc1)N(c2ccc(cc2)-c3ccc(cc3)N(c4ccccc4)c5cccc6ccccc56)c7cccc8ccccc78

InChI

1S/C44H32N2/c1-3-17-37(18-4-1)45(43-23-11-15-35-13-7-9-21-41(35)43)39-29-25-33(26-30-39)34-27-31-40(32-28-34)46(38-19-5-2-6-20-38)44-24-12-16-36-14-8-10-22-42(36)44/h1-32H

InChI key

IBHBKWKFFTZAHE-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

Hole transporting material for OLED devices

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCM7292
MKCF4255
MKBW0065V
MKBN2316V
MKBH7246V

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 2

1 of 2

Bathocuproine sublimed grade, 99.99% trace metals basis

Sigma-Aldrich

699152

Bathocuproine

TPBi

Sigma-Aldrich

806781

TPBi

Courtney M Wheatley et al.
Respiratory medicine, 109(8), 1001-1011 (2015-06-17)
Despite the demonstrated advantageous systemic changes in response to regular exercise for individuals with cystic fibrosis (CF), exercise is still viewed as an elective rather than a vital component of therapy, and it is likely that these benefits extend to
Shakeel S Dalal et al.
Proceedings of the National Academy of Sciences of the United States of America, 112(14), 4227-4232 (2015-04-02)
Physical vapor deposition is commonly used to prepare organic glasses that serve as the active layers in light-emitting diodes, photovoltaics, and other devices. Recent work has shown that orienting the molecules in such organic semiconductors can significantly enhance device performance.
Highly efficient and stable organic light-emitting diode using 4,4'-bis(N-carbazolyl)-9,9'-spirobifluorene as a thermally stable host material
Tsuzuki, T.; Tokito, S.
Applied Physics Letters, 94, 033302-033302 (2009)
Phenylcarbazole-dipyridyl triazole hybrid as bipolar host material for phosphorescent OLEDs
Hung, W.; et al.
Journal of Materials Chemistry, 22, 5410-5418 (2012)
Davalyn R Powell et al.
Developmental biology, 407(2), 289-299 (2015-08-11)
Neural crest cells (NCCs) are essential embryonic progenitor cells that are unique to vertebrates and form a remarkably complex and coordinated system of highly motile cells. Migration of NCCs occurs along specific pathways within the embryo in response to both
View All Related Papers

Articles

Organic Semiconductor Laser Materials

In this article, we demonstrate that bis-styrylbenzene derivatives show promising characteristics for very low lasing thresholds and discuss the design considerations for organic lasing molecules.

Materials Design Concepts for Efficient Blue OLEDs: A Joint Theoretical and Experimental Study

Since their discovery, organic light emitting devices (OLEDs) have evolved from a scientific curiosity into a technology with applications in flat panel displays and the potential to revolutionize the lighting market. During their relatively short history, the technology has rapidly advanced, and device efficiencies have increased more than 20-fold, approaching the theoretical limit for internal quantum efficiencies.

Organic & Hybrid Electronics for Optical Analysis

Professor Shinar highlights low-cost, disposable sensor configurations in organic and hybrid electronics for healthcare applications.

Organic & Hybrid Electronics for Optical Analysis

Professor Shinar highlights low-cost, disposable sensor configurations in organic and hybrid electronics for healthcare applications.

See All

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service