765015

2,2′-Dimethyl-N,N′-di-[(1-naphthyl)-N,N′-diphenyl]-1,1′-biphenyl-4,4′-diamine

97% (HPLC)

• Synonym(s): α-NPD, N,N′-Bis(naphthalen-1-yl)-N,N′-bis(phenyl)-2,2′-dimethylbenzidine
• Empirical Formula (Hill Notation): C₄₆H₃₆N₂
• CAS Number: 495416-60-9
• Molecular Weight: 616.79
• MDL number: MFCD22581298
• UNSPSC Code: 12352103
• PubChem Substance ID: 329767146
• NACRES: NA.23

Properties

• assay: 97% (HPLC)
• form: solid
• mp: 247-252 °C
• λmax: 306 nm in THF
• SMILES string: Cc1cc(ccc1-c2ccc(cc2C)N(c3ccccc3)c4cccc5ccccc45)N(c6ccccc6)c7cccc8ccccc78
• InChI: 1S/C46H36N2/c1-33-31-39(47(37-19-5-3-6-20-37)45-25-13-17-35-15-9-11-23-43(35)45)27-29-41(33)42-30-28-40(32-34(42)2)48(38-21-7-4-8-22-38)46-26-14-18-36-16-10-12-24-44(36)46/h3-32H,1-2H3
• InChI key: ZJFKMIYGRJGWIB-UHFFFAOYSA-N

Description

General description

2,2′-Dimethyl-N,N′-di-[(1-naphthyl)-N,N′-diphenyl]-1,1′-biphenyl-4,4′-diamine (α-NPD) is a conducting polymer that can be used as a hole transporting material (HTM) with a transport gap of _~4 eV and an ionization potential of 5.5 eV.

Application

α-NPD can be used as a π-conjugated organic semiconducting material which has good charge transporting properties. It can be used in the fabrication of organic electronic devices such organic light emitting diodes (OLEDs) and organic solar cells (OSCs).

This material is used as a high performance host material for OLED devices showing increased device efficiency (maximum luminance efficiency was 4.4 cd/A at 9 V for the fluorescent device and 24.4 cd/A for phosphorescent device).

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable