Interactions in Rare Earth Doped Nanoparticles: A Multi-Transition, Concentration, and Excitation Path Analysis
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arXiv
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| Hauptverfasser: | , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866912570264256512 |
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| author | Perrin, Pauline Santos, Luiz Fernando Dos Serrano, Diana Tiranov, Alexey Achard, Jocelyn Tallaire, Alexandre Gonçalves, Rogéria R. Goldner, Philippe |
| author_facet | Perrin, Pauline Santos, Luiz Fernando Dos Serrano, Diana Tiranov, Alexey Achard, Jocelyn Tallaire, Alexandre Gonçalves, Rogéria R. Goldner, Philippe |
| contents | Understanding and modeling energy transfer mechanisms in rare-earth-doped nanomaterials is essential for advancing luminescent technologies used in bioimaging, optical thermometry, and solid-state lasers. In this work, we investigate the photoluminescence dynamics of Yb3+ and Er3+ ions in Y2O3 nanoparticles over a wide concentration range (0.5-17%), using both direct and upconversion excitation. Luminescence decays of green, red, and near-infrared transitions were measured and analyzed using a rate-equation model incorporating radiative and non-radiative processes, energy transfer mechanisms, and defect-related quenching. The model successfully reproduces experimental trends across most concentrations and excitation paths. This work provides a reliable and predictive framework for modeling energy transfer in rare-earth doped materials and offers valuable insights for optimizing photoluminescent properties in nanostructured systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_04233 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Interactions in Rare Earth Doped Nanoparticles: A Multi-Transition, Concentration, and Excitation Path Analysis Perrin, Pauline Santos, Luiz Fernando Dos Serrano, Diana Tiranov, Alexey Achard, Jocelyn Tallaire, Alexandre Gonçalves, Rogéria R. Goldner, Philippe Materials Science Optics Understanding and modeling energy transfer mechanisms in rare-earth-doped nanomaterials is essential for advancing luminescent technologies used in bioimaging, optical thermometry, and solid-state lasers. In this work, we investigate the photoluminescence dynamics of Yb3+ and Er3+ ions in Y2O3 nanoparticles over a wide concentration range (0.5-17%), using both direct and upconversion excitation. Luminescence decays of green, red, and near-infrared transitions were measured and analyzed using a rate-equation model incorporating radiative and non-radiative processes, energy transfer mechanisms, and defect-related quenching. The model successfully reproduces experimental trends across most concentrations and excitation paths. This work provides a reliable and predictive framework for modeling energy transfer in rare-earth doped materials and offers valuable insights for optimizing photoluminescent properties in nanostructured systems. |
| title | Interactions in Rare Earth Doped Nanoparticles: A Multi-Transition, Concentration, and Excitation Path Analysis |
| topic | Materials Science Optics |
| url | https://arxiv.org/abs/2509.04233 |