Neutron beam interaction with rutile TiO2 single crystal (1 1 1): Raman and XPS study on Ti3+-oxygen vacancy formation
| Autor: | Mohd Zainizan Sahdan, Cik Rohaida Che Hak, Zaidi Embong, Feri Adriyanto, Nafarizal Nayan, S. A. Abdullah |
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| Rok vydání: | 2020 |
| Předmět: |
Materials science
Mechanical Engineering Binding energy 02 engineering and technology Neutron radiation 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences symbols.namesake X-ray photoelectron spectroscopy Mechanics of Materials Rutile symbols Physical chemistry General Materials Science Neutron Thin film 0210 nano-technology Raman spectroscopy Single crystal |
| Zdroj: | Materials Letters. 263:127143 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2019.127143 |
| Popis: | Influence of the interaction between neutron and TiO2 surface is studied for the first time. By knowing the mechanism of this interaction, it could be useful to understand the possibility of the formation of Ti3+ and oxygen vacancy (Vo) surface defect. Raman spectroscopy and X-ray Photoelectron Spectroscopy (XPS) were used for surface defect characterization analysis. According to XPS analysis, it shows that binding energy is shifted about 0.05 eV toward higher binding energy. The formation of Ti3+ and Vo defect is depending on the irradiation time which explained that longer irradiation time would give more time to neutron-electron interaction, thus enhanced the defect development on TiO2 thin film. |
| Databáze: | OpenAIRE |
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