| 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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Shan, W.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (16/16 displayed)
- 2008Energetic Beam Synthesis of Dilute Nitrides and Related Alloyscitations
- 2005Highly mismatched alloys for intermediate band solar cells
- 2004Oxygen induced band-gap reduction in ZnOxSe1-x alloyscitations
- 2004Diluted ZnMnTe oxidecitations
- 2004Synthesis and properties of highly mismatched II-O-VI alloyscitations
- 2004Effects of pressure on the band structure of highly mismatched Zn1-yMnyOxTe1-x alloyscitations
- 2004Effect of oxygen on the electronic band structure of II-O-VI alloyscitations
- 2004Synthesis and optical properties of II-O-VI highly mismatched alloyscitations
- 2003Band-gap bowing effects in BxGa1-xAs alloyscitations
- 2003Mutual passivation of group IV donors and isovalent nitrogen in diluted GaNxAs1-x alloyscitations
- 2003Mutual passivation of group IV donors and nitrogen in diluted GaN xAs1-x alloyscitations
- 2003Effect of oxygen on the electronic band structure in ZnOxSe1-x alloyscitations
- 2002Band anticrossing effects in MgyZn1-yTe 1-xSex alloyscitations
- 2000Effect of nitrogen on the electronic band structure of group III-N-V alloys
- 2000Synthesis of III-Nx-V1-x Thin Films by N Ion Implantationcitations
- 2000Effect of nitrogen on the band structure of III-N-V alloys
Places of action
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article
Synthesis and properties of highly mismatched II-O-VI alloys
Abstract
Ternary and quaternary dilute II-VI oxides were synthesised using a highly non-equilibrium method: the combination of O ion implantation and pulsed-laser melting. CdO<sub>x</sub>Te<sub>1-x</sub> thin films have been produced with x up to 0.015 and with the energy gap reduced by 0.15 eV. Optical transitions corresponding to both the lower (E<sub>-</sub>) and upper (E<sub>+</sub>) conduction sub-bands, resulting from the anticrossing interaction between the localised O states and the extended conduction states of the matrix, are clearly observed in quaternary Cd <sub>0.6</sub>Mn<sub>0.4</sub>O<sub>x</sub>Te<sub>1-x</sub> and Zn<sub>0.88</sub>Mn<sub>0.12</sub>O<sub>x</sub>Te<sub>1-x</sub> layers. These results have important implications for the existing theoretical models of the electronic structure of the highly mismatched alloys. In Zn<sub>1-x</sub>Mn<sub>x</sub>Te, where the O level lies below the conduction band edge, it was demonstrated that incorporation of a small amount of oxygen leads to the formation of a narrow, oxygen-derived band of extended states located well below the conduction band edge of the ZnMnTe matrix. The three absorption edges of this material (∼0.73, 1.83 and 2.56eV) cover the entire solar spectrum providing a material envisioned for multiband, single-junction, high-efficiency photovoltaic devices.