| About this Abstract |
| Meeting |
2025 TMS Annual Meeting & Exhibition
|
| Symposium
|
Thin Films and Coatings: Properties, Processing and Applications
|
| Presentation Title |
Synthesis, Microstructure, and Interfacial Surface Properties of TeO2-Core/TiO2-Shell Nanowires |
| Author(s) |
Sangwoo Kim, Myung Sik Choi, Changhyun Jin |
| On-Site Speaker (Planned) |
Sangwoo Kim |
| Abstract Scope |
Core-shell nanowires of TeO2 and TiO2 with a thickness of approximately 50-150 nanometers and a length of several tens of micrometers were fabricated by thermal evaporation and metal organic chemical vapor deposition. And the characteristics such as morphology, composition, and crystallinity of this core-shell structure were analyzed by SEM, TEM, EDX, XPS, Raman, UV, and XRD, respectively. In addition, the behavior of electrons that can be transferred between TeO2 and TiO2 interfaces was predicted through photoluminescence measurement at room temperature. Originally, bare TeO2 nanowires alone showed emission characteristics at approximately 480 nm, but a bule-shift phenomenon was gradually observed with TiO2 coating. And at a TiO2 coating thickness of about 15 nm, the highest emission was observed, which was about 6 times better than that of bare TeO2. Additionally, the effect of heat treatment on the TeO2-core- TiO2-shell was discussed in detail. |
| Proceedings Inclusion? |
Planned: |
| Keywords |
Ceramics, Nanotechnology, Surface Modification and Coatings |