Stokes and anti-Stokes luminescence in Tm3+/Yb3+-doped Lu3Ga5O12 nano-garnets: a study of multipolar interactions and energy transfer dynamics
Currently, research on lanthanide (Ln3+) doped oxide based nanocrystals is one of the burgeoning fields for the development of materials for optical sensors, phosphors in solid state lighting, display devices, photovoltaic and photocatalytic applications, etc.,1–7 since the resolution is inversely r...
| Autores: | , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Universidad de La Laguna (ULL) |
| Repositorio: | RIULL. Repositorio Institucional de la Universidad de La Laguna |
| OAI Identifier: | oai:riull.ull.es:915/40883 |
| Acceso en línea: | http://riull.ull.es/xmlui/handle/915/40883 |
| Access Level: | acceso abierto |
| Palabra clave: | Stokes anti-Stokes luminescence energy transfer dynamics multipolar interactions nano-garnets |
| Sumario: | Currently, research on lanthanide (Ln3+) doped oxide based nanocrystals is one of the burgeoning fields for the development of materials for optical sensors, phosphors in solid state lighting, display devices, photovoltaic and photocatalytic applications, etc.,1–7 since the resolution is inversely related to the size of the particle.8 All these applications could be realized through the control of the excited state dynamics of Ln3+ ions by choosing appropriate host matrices with optimized active ion concentrations. Different host materials bear different concentrations of active ions, diverse phonon energies, and energy transfer efficiencies, etc.,which play a vital role in luminescence properties of Ln3+ ions. Thus, it is of great importance to choose a suitable host material with critical active ion concentration. An ideal host material should exhibit: (i) high solubility of active ions, (ii) low phonon energy to minimize non-radiative relaxations, (iii) high transparency from UV to NIR regions and (iv) high chemical and thermal stabilities to retain the original crystal structure. |
|---|