Tunable white light emission through energy transfer processes between silver species in Ag-doped zinc phosphate glass
| Autor: | H. Félix-Quintero, E.V. Mejía-Uriarte, C. Falcony, D. Acosta, J. Hernández A, C. Flores J, E. Camarillo G, H. Murrieta S |
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| Rok vydání: | 2020 |
| Předmět: |
Molar concentration
Materials science Energy transfer Inorganic chemistry Doping Biophysics Zinc phosphate 02 engineering and technology General Chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Biochemistry Atomic and Molecular Physics and Optics 0104 chemical sciences Ion Matrix (chemical analysis) chemistry.chemical_compound chemistry Impurity White light 0210 nano-technology |
| Zdroj: | Journal of Luminescence. 222:117122 |
| ISSN: | 0022-2313 |
| DOI: | 10.1016/j.jlumin.2020.117122 |
| Popis: | Silver doped zinc phosphate glass was successfully synthesized at different molar concentrations of AgCl from 1% up to 20%. Zinc phosphate glass shows a high capacity to hold silver impurities without loss of optical quality. This material shows two different centers able to emit blue and green-red light, the first one from isolated Ag+ ions and the latter from Ag+ pairs. The intensity of each emission can be tuned by varying the composition of silver in the matrix, reaching the white light emission at 12 and 14% molar AgCl. Two energy transfer mechanisms were detected: charge transfer from zinc phosphate glass matrix to isolated Ag+ ions (that can improve the forbidden blue emission) and energy transfer from Ag+ single ions to Ag+ pairs. |
| Databáze: | OpenAIRE |
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