Structural, morphological and photoluminescence properties of W-doped ZnO nanostructures
| Autor: | Malik Maaza, O. Sakho, Ncholu I. Manyala, N. Mlungisi, Balla D. Ngom, Aboubaker Chedikh Beye, Lakhdar Guerbous, Jean B. Kana Kana, A.Y. Fasasi |
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| Rok vydání: | 2009 |
| Předmět: |
Photoluminescence
Materials science Laser ablation Scanning electron microscope Doping General Physics and Astronomy Nanotechnology Surfaces and Interfaces General Chemistry Substrate (electronics) Condensed Matter Physics medicine.disease_cause Surfaces Coatings and Films Pulsed laser deposition Chemical engineering medicine Nanorod Ultraviolet |
| Zdroj: | Applied Surface Science. 255:7314-7318 |
| ISSN: | 0169-4332 |
| DOI: | 10.1016/j.apsusc.2009.03.089 |
| Popis: | W-doped ZnO nanostructures were synthesized at substrate temperature of 600 °C by pulsed laser deposition (PLD), from different wt% of WO3 and ZnO mixed together. The resulting nanostructures have been characterized by X-ray diffraction, scanning electron microscopy, atomic force microscopy and photoluminescence for structural, surface morphology and optical properties as function of W-doping. XRD results show that the films have preferred orientation along a c-axis (0 0 L) plane. We have observed nanorods on all samples, except that W-doped samples show perfectly aligned nanorods. The nanorods exhibit near-band-edge (NBE) ultraviolet (UV) and violet emissions with strong deep-level blue emissions and green emissions at room temperature. |
| Databáze: | OpenAIRE |
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