Effect of low-density polyethylene on the luminescent properties of thulium-doped yttrium oxide obtained by the polyol technique
| Autor: | G. Alarcón-Flores, I. A. Garduño-Wilches, R.I. Sánchez-Alarcón, S. Carmona-Téllez, M. A. Aguilar-Frutis |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Polymers and Plastics Doping Metals and Alloys Analytical chemistry Oxide chemistry.chemical_element Yttrium Polyethylene Surfaces Coatings and Films Electronic Optical and Magnetic Materials Biomaterials chemistry.chemical_compound Low-density polyethylene Thulium chemistry Thin film Luminescence |
| Zdroj: | Materials Research Express. 7:036408 |
| ISSN: | 2053-1591 |
| Popis: | In the present work polyethylene is used as a support of yttrium oxide particles doped with thulium atoms and its effect on the luminescent properties is studied. Thulium-doped yttrium oxide was prepared through the polyol method, different values of thulium are explored: 0, 0.5, 1, 1.5, 2.5 and 3.5 at.%, as well as different calcinating temperatures: 400, 600, 800 and 1000 °C, are explored in order to determine the synthesis conditions needed for the maximum emission intensity, whose values were 1.5 at.% of thulium and 1000 °C. The synthesized powder is dispersed in low-density polyethylene and dispersed as a thin film on glass substrates. The luminescent excitation and emission spectra showed important changes attributed to the influence of the -CH2- chain vibration; in addition, the presence of the polymer had an important influence on the emission decay time: while the powder showed a single emission process with a time of 9.293 us, the film showed a two decay process with 1.156 us and 4.086 us, each. |
| Databáze: | OpenAIRE |
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