Broadband Near-IR photoluminescence of bismuth-doped cyclotriphosphate RbMgP3O9 phase
| Autor: | E. V. Haula, D. P. Shashkin, Vladimir N. Korchak, Alexey N. Romanov |
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| Rok vydání: | 2021 |
| Předmět: |
Materials science
Photoluminescence Mechanical Engineering Doping Metals and Alloys Analytical chemistry chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences law.invention Bismuth Rubidium chemistry Mechanics of Materials law Phase (matter) Materials Chemistry Photoluminescence excitation Crystallite Crystallization 0210 nano-technology |
| Zdroj: | Journal of Alloys and Compounds. 864:158907 |
| ISSN: | 0925-8388 |
| DOI: | 10.1016/j.jallcom.2021.158907 |
| Popis: | Polycrystalline samples of rubidium magnesium cyclotriphosphate RbMgP3O9 phase were prepared by crystallization from the melt. It was shown, that reductive conditions throughout crystallization process lead to the appearance of strong photoluminescence in the Near-IR. The photoluminescence spectrum contains the single band with maximum at 913 nm (300 K), while photoluminescence excitation spectrum consists of five bands in visible spectral diapason. The kinetic of photoluminescence decay after the pulse excitation can be fitted by single exponent with characteristic lifetime 525 μs (300 K). We suppose, that univalent bismuth cation Bi+, substituted for Rb+, is the single Near-IR emissive center in RbMgP3O9 phase. This material and the similar bismuth-doped cyclotriphosphate phases can be the new optical materials with potential applications in photonics and laser physics. |
| Databáze: | OpenAIRE |
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