Synthesis and luminescence spectra of poly(methyl methacrylate)/CdS:Ln(III) composites
| Autor: | Yu. V. Lyakhova, A. A. Isaeva, V. P. Smagin, N. S. Eremina |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
General Chemical Engineering Radical polymerization chemistry.chemical_element Nanoparticle Terbium 02 engineering and technology macromolecular substances 01 natural sciences тербий Inorganic Chemistry chemistry.chemical_compound 0103 physical sciences Materials Chemistry Methyl methacrylate Composite material европий 010302 applied physics наночастицы метилметакрилат digestive oral and skin physiology Metals and Alloys technology industry and agriculture 021001 nanoscience & nanotechnology Poly(methyl methacrylate) Cadmium sulfide композиты body regions chemistry visual_art люминесценция visual_art.visual_art_medium 0210 nano-technology Luminescence Europium сульфид кадмия |
| Zdroj: | Inorganic materials. 2017. Vol. 53, № 3. P. 263-270 |
| Popis: | Cadmium sulfide was prepared by colloidal synthesis in methyl methacrylate (MMA). Europium and terbium salts were added to the colloidal solutions. Using MMA radical polymerization, we synthesized PMMA/CdS:Eu(III), PMMA/CdS:Tb(III), and PMMA/CdS:Eu(III):Tb(III) luminescent composites. Their luminescence is due to defects in the CdS crystals and the 5 D о → 7Fj and 5 D 4 → 7 F j electronic transitions of the Eu3+ and Tb3+ ions, respectively. It depends on the composition of the materials, complexation on the surface of the colloidal particles, heat treatment time during synthesis, excitation wavelength, and other factors. |
| Databáze: | OpenAIRE |
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