Monochromatic-red-light emission of novel copolymers containing carbazole units and europium-acrylate complexes

Abstract

Nearly monochromatic‐red‐light‐emitting polymers with pendant carbazole and europium (Eu) complex were synthesized and characterized by Fourier transform infrared, elemental analysis (EA), 1H NMR, 13C NMR, UV, and gel permeation chromatography. The photoluminescence and electroluminescence (EL) properties of these polymers were investigated. A single‐layer light‐emitting‐diode device of the structure (indium tin oxide/polymer P4/Al) was fabricated, showing the characteristic bright‐red EL of the Eu3+ complex at 614 nm at a turn‐on voltage of about 17 V. The EL spectrum, current–voltage, and emission‐intensity–voltage characteristics of the device were measured. © 2000 John Wiley & Sons, Inc. J Polym Sci A: Polym Chem 38: 3405–3411, 2000

Optical spectroscopy of Nd3+ions in poly(acrylic acid)

“…No precipitated Nd 3+ was observed, which supports the fact that Nd 3+ ions were incorporated into the polymer matrix. Considering that, in the neutralization process, hydroxide ions form water with the protons produced from the dissociation of AA, the only possible counter-ions in the polymer are carboxylate anions, which can be coordinated to the Nd 3+ ions [15,16].…”

Optical spectroscopy of Nd3+ions in poly(acrylic acid)

“…No precipitated Nd 3+ was observed, which supports the fact that Nd 3+ ions were incorporated into the polymer matrix. Considering that, in the neutralization process, hydroxide ions form water with the protons produced from the dissociation of AA, the only possible counter-ions in the polymer are carboxylate anions, which can be coordinated to the Nd 3+ ions [15,16].…”

Influences of compositions and ligands on photoluminescent properties of Eu(III) ions in composite europium complex/PMMA systems

“…One uses the polymerization of monomers that contain Eu 3+ ions or achieves with the aid of reactions between Eu 3+ ions or europium complexes with polymers that have ligands in their chains [12][13][14][15][16][17][18][19][20]. On the other method, the composites can be prepared just by blending the polymers and the europium complexes in appropriate solvents [21][22][23][24][25] together [26].…”

Optical spectroscopy of Nd3+ions in poly(acrylic acid)

“…No precipitated Nd 3+ was observed, which supports the fact that Nd 3+ ions were incorporated into the polymer matrix. Considering that, in the neutralization process, hydroxide ions form water with the protons produced from the dissociation of AA, the only possible counter-ions in the polymer are carboxylate anions, which can be coordinated to the Nd 3+ ions [15,16].…”

Influences of compositions and ligands on photoluminescent properties of Eu(III) ions in composite europium complex/PMMA systems

“…One uses the polymerization of monomers that contain Eu 3+ ions or achieves with the aid of reactions between Eu 3+ ions or europium complexes with polymers that have ligands in their chains [12][13][14][15][16][17][18][19][20]. On the other method, the composites can be prepared just by blending the polymers and the europium complexes in appropriate solvents [21][22][23][24][25] together [26].…”

Optical spectroscopy of Nd3+ions in poly(acrylic acid)

“…No precipitated Nd 3+ was observed, which supports the fact that Nd 3+ ions were incorporated into the polymer matrix. Considering that, in the neutralization process, hydroxide ions form water with the protons produced from the dissociation of AA, the only possible counter-ions in the polymer are carboxylate anions, which can be coordinated to the Nd 3+ ions [15,16].…”

Influences of compositions and ligands on photoluminescent properties of Eu(III) ions in composite europium complex/PMMA systems

“…One uses the polymerization of monomers that contain Eu 3+ ions or achieves with the aid of reactions between Eu 3+ ions or europium complexes with polymers that have ligands in their chains [12][13][14][15][16][17][18][19][20]. On the other method, the composites can be prepared just by blending the polymers and the europium complexes in appropriate solvents [21][22][23][24][25] together [26].…”