Synthesis and photoluminescence properties of a Dy(III)-containing copolymer in a WLED device

Synthesis and photoluminescence properties of a Dy(III)-containing copolymer in a WLED device The copolymer poly(MMA-co-Dy(4-BBA)2(TPPO)2(UA)) was obtained by free-radical copolymerization of the synthesized reactive Dy(III)-containing complex Dy(4-BBA)2(TPPO)2(UA) with methyl methacrylate monomer. The structure, morphology, and microcell composition of the copolymer were characterized by FT-IR and UV–visible spectroscopy, SEM, and EDS. The thermal properties were investigated by TG–DTG and DSC analysis, and the photoluminescence properties were investigated by acquisition of fluorescence spectra. The results show that the copolymer (Dy complex content 0.41 %) furnished characteristic Dy(III) peaks at 480 nm $$ \left( {^{4} {\text{F}}_{9/2} \to^{6} {\text{H}}_{15/2} } \right) $$ ( 4 F 9 / 2 → 6 H 15 / 2 ) and 572 nm $$ \left( {^{4} {\text{F}}_{9/2} \to^{6} {\text{H}}_{13/2} } \right) $$ ( 4 F 9 / 2 → 6 H 13 / 2 ) and retained the excellent luminescence of the complex. Its Commission Internationale De L’Eclairage (CIE) coordinates were calculated as x = 0.315 and y = 0.369, which were located at the edge of the white light region. Compared with the homopolymer PMMA, the copolymer increased the glass transition temperature (T g) from 105 to 132 °C. TG–DTG analysis indicated the copolymer was stable up to 228 °C, thus meeting the operating temperature requirement of LEDs. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Synthesis and photoluminescence properties of a Dy(III)-containing copolymer in a WLED device

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Publisher
Springer Netherlands
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1116-1
Publisher site
See Article on Publisher Site

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