| 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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Curry, Rj
University of Manchester
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (12/12 displayed)
- 2023A high-resolution versatile focused ion implantation platform for nanoscale engineeringcitations
- 2022High efficiency semitransparent perovskite solar cells containing 2D nanopore arrays deposited in a single stepcitations
- 2021Exciton effects in perovskite nanocrystalscitations
- 2019Optical and electrical properties of alkaline-doped and As-alloyed amorphous selenium filmscitations
- 2019X-ray induced Sm-ion valence conversion in Sm-ion implanted fluoroaluminate glasses towards high-dose radiation measurementcitations
- 2014Optical and electronic properties of bismuth-implanted glassescitations
- 2014n-type chalcogenides by ion implantationcitations
- 2014n-type chalcogenides by ion implantation.citations
- 2013On the analogy between photoluminescence and carrier-type reversal in Bi- and Pb-doped glassescitations
- 2011Determination of the oxidation state and coordination of a vanadium doped chalcogenide glasscitations
- 2007Concentration dependence of the fluorescence decay profile in transition metal doped chalcogenide glasscitations
- 2005A study of environmental effects on the attenuation of chalcogenide optical fibrecitations
Places of action
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article
Determination of the oxidation state and coordination of a vanadium doped chalcogenide glass
Abstract
Vanadium doped chalcogenide glass has potential as an active gain medium, particularly at telecommunicationswavelengths. This dopant has three spin allowed absorption transitions at 1100, 737 and578 nm, and a spin forbidden absorption transition at 1000 nm. X-ray photoelectron spectroscopy indicatedthe presence of vanadium in a range of oxidation states from V+ to V5+. Excitation of each absorptionband resulted in the same characteristic emission spectrum and lifetime, indicating that only oneoxidation state is optically active. Arguments based on Tanabe–Sugano analysis indicated that the configurationof the optically active vanadium ion was octahedral V2+. The calculated crystal field parameters(Dq/B, B and C/B) were 1.85, 485.1 and 4.55, respectively.