Impurity-Governed Modification of Optical and Structural Properties of ZrO2-Based Composites Doped with Cu and Y
| Autor: | Larysa Khomenkova, V. K. Nosenko, Xavier Portier, S. Lavoryk, M. Baran, Nadiia Korsunska, Igor Vorona |
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| Přispěvatelé: | V.E. Lashkaryov Institute of Semiconductor Physics, National Academy of Sciences of Ukraine (NASU), NanoMedTech LLC, Centre de recherche sur les Ions, les MAtériaux et la Photonique (CIMAP - UMR 6252), Université de Caen Normandie (UNICAEN), Normandie Université (NU)-Normandie Université (NU)-École Nationale Supérieure d'Ingénieurs de Caen (ENSICAEN), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche sur les Matériaux Avancés (IRMA), Normandie Université (NU)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut national des sciences appliquées Rouen Normandie (INSA Rouen Normandie), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Rouen Normandie (UNIROUEN), Institut National des Sciences Appliquées (INSA)-Normandie Université (NU)-Institut National des Sciences Appliquées (INSA)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2017 |
| Předmět: |
Materials science
Analytical chemistry chemistry.chemical_element Nanotechnology 02 engineering and technology 010402 general chemistry 01 natural sciences [SPI.MAT]Engineering Sciences [physics]/Materials law.invention Attenuated total reflection Tetragonal crystal system Materials Science(all) law General Materials Science Calcination Electron paramagnetic resonance Doping 021001 nanoscience & nanotechnology Condensed Matter Physics Copper 0104 chemical sciences chemistry Nanocrystal Absorption band [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Diffuse reflectance Diffuse reflection Cu-doped Y-stabilized ZrO 2 0210 nano-technology Transmission electron microscopy |
| Zdroj: | Nanoscale Research Letters Nanoscale Research Letters, SpringerOpen, 2017, pp.157. ⟨10.1186/s11671-017-1920-4⟩ Nanoscale Research Letters, 2017, 12, pp.157. ⟨10.1186/s11671-017-1920-4⟩ |
| ISSN: | 1556-276X 1931-7573 |
| DOI: | 10.1186/s11671-017-1920-4 |
| Popis: | International audience; The influence of calcination temperature on copper spatial localization in Y-stabilized ZrO 2 powders was studied by attenuated total reflection, diffuse reflectance, electron paramagnetic resonance, transmission electron microscopy, electron energy loss, and energy-dispersive X-ray spectroscopies. It was found that calcination temperature rise in the range of 500–700 °C caused the increase of copper concentration in the volume of ZrO 2 nanocrystals. This increase was due to Cu in-diffusion from surface complexes that contained copper ions linked with either water molecules or OH groups. This copper in-diffusion led also to an enhancement of absorption band peaked at ~270 nm that was ascribed to the formation of additional oxygen vacancies in nanocrystal volume. Further increasing of calcination temperature from 800 up to 1000 °C resulted in outward Cu diffusion accompanied by a decrease of the intensity of the 270-nm absorption band (i.e., oxygen vacancies' number), the transformation of ZrO 2 tetragonal (cubic) phase to monoclinic one as well as the enhancement of absorption band of dispersed and crystalline CuO in the 600–900 nm range. |
| Databáze: | OpenAIRE |
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