부가기능
Monochromatic-Red-Light Emission of Novel Copolymers Containing Carbazole Units and Europium-Acrylate Complexes - 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 520 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/
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