Abstract
Abstract A luminescent europium-containing copolymer, poly(MMA- UA -co-Eu (DBM)2 (TOPO)2)was synthesized The copolymer was characterized by FT-IR, UV–vis, gel permeation chromatograph (GPC), ICP, thermogravimetric analysis (TGA), derivative thermal gravimetric analysis (DTG) and differential scanning calorimetry (DSC). The Eu-copolymer phosphor exhibited high thermal stability, high glass transition, excellent photoluminescence properties (PL), appropriate CIE chromaticity coordinates for red and good quantum yield (18%) under near-UV light excitation. An intense red-emitting light-emitting diode (LED) was fabricated by combining poly[UA-MMA-co-Eu (DBM)2(TOPO)2] with a 395 nm-emitting InGaN chip. The results indicate that the Eu-copolymer phosphor may act as a red component for fabrication of white LEDs.
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