| Autor: |
Rtimi M; Laboratory Light, Nanomaterials & Nanotechnologies (L2n-CNRS-EMR 7004), University of Technology of Troyes, 10004 Troyes, France.; Faculty of Sciences of Tunis, University of Tunis El Manar, Tunis 2092, Tunisia.; Research and Technology Centre of Energy, Borj Cedria B.P N° 95, Hammam-Lif 2050, Tunisia., Beydoun N; Laboratory Light, Nanomaterials & Nanotechnologies (L2n-CNRS-EMR 7004), University of Technology of Troyes, 10004 Troyes, France., Movsesyan A; Laboratory Light, Nanomaterials & Nanotechnologies (L2n-CNRS-EMR 7004), University of Technology of Troyes, 10004 Troyes, France., Akil S; LCP-A2MC Laboratory, Jean Barriol Institute, University of Lorraine, 1 Bd Arago, 57070 Metz, France., Kostcheev S; Laboratory Light, Nanomaterials & Nanotechnologies (L2n-CNRS-EMR 7004), University of Technology of Troyes, 10004 Troyes, France., Gassmann X; Laboratory Light, Nanomaterials & Nanotechnologies (L2n-CNRS-EMR 7004), University of Technology of Troyes, 10004 Troyes, France., Lajnef M; Research and Technology Centre of Energy, Borj Cedria B.P N° 95, Hammam-Lif 2050, Tunisia., Chtourou R; Research and Technology Centre of Energy, Borj Cedria B.P N° 95, Hammam-Lif 2050, Tunisia., Jradi S; Laboratory Light, Nanomaterials & Nanotechnologies (L2n-CNRS-EMR 7004), University of Technology of Troyes, 10004 Troyes, France. |
| Abstrakt: |
In this study, we fabricated a hybrid plasmonic/semiconductor material by combining the chemical bath deposition of zinc oxide nanowires (ZnONWs) with the physical vapor deposition of aluminum nanostructures (AlNSs) under controlled temperature and atmosphere. The morphological and the optical properties of the ZnONWs/AlNSs hybrid material fabricated at different temperatures (250, 350, and 450 °C) and thicknesses (5, 7, and 9 nm) of Al layers were investigated. By adjusting the deposition and annealing parameters, it was possible to tune the size distribution of the AlNSs. The resonant coupling between the plasmonic AlNSs and ZnONWs leads to an enhanced photoluminescence response. The photocatalytic activity was studied through photodegradation under UV-light irradiation of methylene blue (MB) adsorbed at the surface of ZnO. The MB photodegradation experiment reveals that the ZnONWs covered with 7 nm aluminum film and annealed at 450 °C exhibit the highest degradation efficiency. The comparison between ZnONws and ZnONws/AlNSs shows a photoluminescence enhancement factor of 1.7 and an increase in the kinetics constant of photodegradation with a factor of 4. |
