Tuning light emission in Bi and V codoped MgAl2O4 nanostructured films
This study investigates the synthesis of novel Bi and V-codoped MgAl2O4 nanostructured thin films for near-white-light emission upon UV excitation. Sequential pulsed laser deposition (PLD) from Bi, V, and MgAl2O4 targets was employed to prepare nanostructured films with different compositions. The f...
| Autores: | , , , |
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| Tipo de documento: | artigo |
| Estado: | Versão publicada |
| Data de publicação: | 2025 |
| País: | España |
| Recursos: | Universidad de Sevilla (US) |
| Repositório: | idUS. Depósito de Investigación de la Universidad de Sevilla |
| OAI Identifier: | oai:idus.us.es:11441/171166 |
| Acesso em linha: | https://hdl.handle.net/11441/171166 https://doi.org/10.1016/j.ceramint.2024.12.132 |
| Access Level: | Acceso aberto |
| Palavra-chave: | Pulsed laser deposition Near-white light emission Luminescence Nanostructures Spinel |
| Resumo: | This study investigates the synthesis of novel Bi and V-codoped MgAl2O4 nanostructured thin films for near-white-light emission upon UV excitation. Sequential pulsed laser deposition (PLD) from Bi, V, and MgAl2O4 targets was employed to prepare nanostructured films with different compositions. The films have been thoroughly analyzed using Rutherford backscattering spectrometry (RBS), Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and photoluminescence spectroscopy (PL). Upon heat treatments at 500 °C and 800 °C, the films exhibit a broad blue emission in Bi-doped films and a broad yellow emission in V-doped films, respectively. We demonstrate that a strategic combination of Bi and V codoping in MgAl2O4 nanostructures results in near-white light emission. This study highlights the ability to finely control the nanostructure and emission properties of thin films using PLD, and the use of abundant and non-toxic elements to produce white light emission, with significant implications for advanced and sustainable photonic applications. |
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