Interactions in Rare-Earth-Doped Nanoparticles: A Multi-Transition, Concentration, and Excitation Path Analysis
nanoparticles over a wide concentration range (0.5-17%), using both direct and up-conversion excitation. Luminescence decays of green, red, and near-infrared transitions were measured and analyzed using a single rate equation model incorporating radiative and non-radiative processes, energy transfer mechanisms, and defect-related quenching. Using specific measurements to determine each model parameter in a reliable way, we successfully reproduce experimental trends across most concentrations and excitation paths. This unified approach thus provides a sound and predictive framework for modeling energy transfer in rare-earth-doped materials and offers valuable insights for optimizing photoluminescent properties in nanostructured systems.
Authors
- Alexey Tiranov (ORCID: https://orcid.org/0000-0003-0791-8730)
- Jocelyn Achard (ORCID: https://orcid.org/0000-0001-7000-7230)
- Rogéria Rocha Gonçalves (ORCID: https://orcid.org/0000-0001-5540-7690)
- Philippe Goldner (ORCID: https://orcid.org/0000-0001-8517-0911)
- Alexandre Tallaire (ORCID: https://orcid.org/0000-0002-0663-6662)
- Alexandre Hebbrecht
- Diana Serrano
Institutions
- Centre National de la Recherche Scientifique (FR)
- Chimie ParisTech - PSL (FR)
- Universidade de São Paulo (BR)
- Université Paris Sciences et Lettres (FR)
- Université Sorbonne Paris Nord (FR)
- Laboratoire des Sciences des Procédés et des Matériaux (FR)
- Institut de Recherche de Chimie Paris (FR)
Publication Details
- Journal
- ACS Nano
- Published
- 2026-04-11
- DOI
- https://doi.org/10.1021/acsnano.6c00406
- Citations
- 1
- Primary Topic
- Luminescence Properties of Advanced Materials
- Type
- article
- Field-Weighted Citation Impact
- 8.96
Funders
- Centre National de la Recherche Scientifique
- Universidade de São Paulo
- H2020 European Research Council