Dynamic observation on the functional metal oxide conversion behaviors in Fe3O4/ZnO heterostructures
| Autor: | Chun Wei Huang, Chih Yang Huang, Kuo Lun Tai, Hung Yang Lo, Wen-Wei Wu, Yi Tang Tseng |
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| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Materials science Annealing (metallurgy) business.industry Mechanical Engineering Metals and Alloys Oxide Heterojunction 02 engineering and technology 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences Atomic units Metal Atomic diffusion chemistry.chemical_compound chemistry Mechanics of Materials visual_art 0103 physical sciences visual_art.visual_art_medium Optoelectronics General Materials Science 0210 nano-technology business |
| Zdroj: | Scripta Materialia. 177:192-197 |
| ISSN: | 1359-6462 |
| DOI: | 10.1016/j.scriptamat.2019.10.035 |
| Popis: | We directly observed the atomic diffusion process of bilayered Fe/ZnO transforming into a Fe3O4/ZnO heterostructure. Significantly, we suggested a unique two-step route in which Fe diffused along [0001]ZnO via boundaries of ZnO and then reacted along [ 1 ¯ 2 1 ¯ 0]ZnO. The specific orientation relationship of [0001]ZnO//[11 1 ¯ ]Fe3O4 could be precisely controlled. In addition, the formation of a ZnO/Fe3O4 heterostructure can be tuned in terms of reaction depth by controlling the annealing time. This study provided a novel nanofabricated method to produce oriented metal oxide heterostructures while visualizing the atomic mechanism of metal oxide formation, which allows for further investigation of promising devices. |
| Databáze: | OpenAIRE |
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