| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Achehboune, Mohamed
University of Namur
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2024Investigating Impacts of Local Pressure and Temperature on CVD Growth of Hexagonal Boron Nitride on Ge(001)/Si
- 2023Reduced graphene oxide-functionalized zinc oxide nanorods as promising nanocomposites for white light emitting diodes and reliable UV photodetection devicescitations
- 2023Impact of thickness on optoelectronic properties of α-MoO3 film photodetectors: Integrating first-principles calculations with experimental analysiscitations
- 2022A DFT study on the electronic structure, magnetic and optical properties of Er doped ZnOcitations
- 2021Effect of Yb concentration on the structural, magnetic and optoelectronic properties of Yb doped ZnOcitations
- 2021Effect of Yb concentration on the structural, magnetic and optoelectronic properties of Yb doped ZnO:first principles calculationcitations
- 2021Enhancement of the structural and morphological properties of ZnO/rGO nanocomposites synthesized by hydrothermal methodcitations
- 2020Graphene oxide concentration effect on the optoelectronic properties of ZnO/GO nanocompositescitations
- 2020Graphene oxide coated flower-shaped ZnO nanorodscitations
- 2019X-ray diffraction investigations of nanostructured ZnO coated with reduced graphene oxidecitations
- 2019Graphene oxide/ZnO nanorods/graphene oxide sandwich structurecitations
- 2018Synthesis and characterization of Graphene oxide/Zinc oxide nanorods sandwich structurecitations
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article
A DFT study on the electronic structure, magnetic and optical properties of Er doped ZnO
Abstract
<p>We report on first-principles study of the effect of Er concentration and intrinsic defects (V<sub>O</sub> and V<sub>Zn</sub>) on the electronic structure and optical properties of Er-doped ZnO using the GGA + U method. The lattice constants and band gap of ZnO calculated in this work are in agreement with experimental values. The results showed that the band gap of Er-doped ZnO decreases with increasing Er concentration, while it increases with the presence of O or Zn vacancies. Furthermore, the existence of VO causes the formation of a deep donor level in the band gap. Er–ZnO + V<sub>Zn</sub> is a degenerate p-type semiconductor, and shallow acceptor states are created near the Fermi level. The magnetic moment of doped ZnO increases and Er 4f electrons are responsible for the induced magnetic moments. The absorption coefficient enhances in the visible range in Er doped ZnO. In the Er–ZnO + V<sub>O</sub> model, both absorption and reflection are relatively enhanced in the visible range, leading to a decrease in light transmittance. Hence, the magneto-optoelectronic properties of ZnO could be improved by an optimal concentration of Er as well as with the presence of oxygen vacancies.</p>