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Synthesis, crystal structure, photo- and electro-luminescence of 3-(4-(anthracen-10-yl)phenyl)-7-(N,N′-diethylamino)coumarin
A new coumarin derivative, 3-(4-(anthracen-10-yl)phenyl)-7-(N,N′-diethylamino)coumarin, was synthesized and characterized by FT-IR, 1H NMR, element analysis and single crystal X-ray crystallography. The dihedral angle of coumarin ring and phenyl group is 30.83°, and the dihedral angle of phenyl grou...
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Published in: | Synthetic metals 2010-08, Vol.160 (15), p.1642-1647 |
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Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | A new coumarin derivative, 3-(4-(anthracen-10-yl)phenyl)-7-(N,N′-diethylamino)coumarin, was synthesized and characterized by FT-IR,
1H NMR, element analysis and single crystal X-ray crystallography. The dihedral angle of coumarin ring and phenyl group is 30.83°, and the dihedral angle of phenyl group and anthracene skeleton is 76.99°. The photoluminescent (PL) and electroluminescent (EL) properties of the compound were investigated. The results show that the compound exhibits high fluorescence quantum yield (0.83), large Stokes shift and strong blue emission (466
nm). The electroluminescence devices comprised of vacuum vapor-deposited films using the compound as dopant were fabricated, showing blue emission that is identical to its photoluminescent spectrum in chloroform solutions. The electroluminescence device of indium tin oxide (ITO)/4,4′,4″-tris[2-naphthyl (phenyl)-amino]triphenylamine (2-TNATA) (5
nm)/N,N-bis-(1-naphthyl)-N,N′-diphenyl-1,1′-biphenyl-4,4′-diamine (NPB) (40
nm)/4,4-N,N-dicarbazole-biphenyl (CBP): dopant (1.0
wt%, 30
nm)/2-(4-biphenyl)-5-(4-t-butylphenyl)-1,3,4-oxadiazole (PBD) (30
nm)/LiF (1
nm)/Al (100
nm) gives a maximum luminous efficiency of 3.3
cd/A at the current density of 20
mA/cm
2, and maximum luminance of 5070
cd/m
2 at 16
V. |
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ISSN: | 0379-6779 1879-3290 |
DOI: | 10.1016/j.synthmet.2010.05.034 |