Color-Tunable Upconversion Luminescence in Er3+-Yb3+ Co-Doped Sodium Lutetium Fluoride Glass-Ceramics
| Autor: | Balda, Rolindes, Velázquez, J. J., Gorni, Giulio, Iparraguirre, Ignacio, Sedano, Mercedes, Kochanowicz, M., Zmojda, J., Dorosz, D., Durán, Alicia, Pascual, M. Jesús, Fernández, Joaquín |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Materials science
Doping Analytical chemistry chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Emission intensity Photon upconversion Lutetium 0104 chemical sciences Ion chemistry.chemical_compound chemistry 0210 nano-technology Luminescence Fluoride Power density |
| Zdroj: | ICTON Digital.CSIC. Repositorio Institucional del CSIC instname |
| Popis: | Trabajo presentado en el 21st International Conference on Transparent Optical Networks (ICTON), celebrado en Angers (Francia), del 9 al 13 de julio de 2019 In this work, the study of the near infrared to visible upconversion (UC) emission in transparent sodium lutetium fluoride glass-ceramics doped with ErF 3 and co-doped with YbF 3 is reported. Intense UC green and red emissions due to ( 2 H 11/2 , 4 S 3/2 ) →4 I 15/2 and 4 F 9/2 →4 I 15/2 transitions respectively together with a more weak blue emission due to the 2 H 9/2 →4 I 15/2 transition have been observed under excitation at 980 nm. The influence of Yb 3+ co-doping and excitation power density on the upconversion emissions is investigated. The addition of Yb 3+ ions greatly enhances the overall UC emission intensity and can be used to tune the UC emission from green to yellow due to an increase of the red-to-green ratio. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|