Optical and magneto-optical properties of zinc-oxide nanostructures grown by the low-temperature chemical route
| Autor: | Adrien Savoyant, Rania Elhadi Adam, Omer Nur, Hatim Alnoor, Magnus Willander |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
010302 applied physics
Materials science Doping chemistry.chemical_element Nanoparticle 02 engineering and technology Zinc 021001 nanoscience & nanotechnology 01 natural sciences law.invention Crystal Ferromagnetism chemistry Chemical engineering law 0103 physical sciences Nanorod 0210 nano-technology Electron paramagnetic resonance Cobalt |
| Zdroj: | Oxide-based Materials and Devices IX. |
| DOI: | 10.1117/12.2288970 |
| Popis: | We demonstrate that the low temperature synthesis chemical route can be utilized to control the functionality of zinc oxide (ZnO) nanoparticles (NPs) and nanorods (NRs) for optical and magneto-optical performance. Different structural, optical, electro- and magneto-optical results will be displayed and analyzed. In the first part, we show how high quality ZnO NPs can be efficient for photodegradation using ultra-violet radiation. In the second part we will present our recent results on the control of the core defects in cobalt doped ZnO NR. Here and by using electron paramagnetic resonance (EPR) measurements, the substitution of Co 2+ ions in the ZnO NRs crystal is shown. The relation between the incorporation and core defects concentration will be discussed. The findings give access to the magnetic anisotropy of ZnO NRs grown by the low temperature chemical route and can lead to demonstrate room temperature ferromagnetism in nanostructures with potential for different device applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|