A comparative study of the annealing atmosphere effect on bismuth particles dedicated for silicon nanowires growth catalyst
| Autor: | J. Bennaceur, M. Srasra, W. Dimassi, H. Derouiche, M. Yaacoubi Tabassi, R. Benabderrahmane Zaghouani |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
inorganic chemicals
Materials science Fabrication Hydrogen Annealing (metallurgy) Scanning electron microscope chemistry.chemical_element 02 engineering and technology 01 natural sciences Bismuth Inorganic Chemistry 0103 physical sciences Materials Chemistry 010302 applied physics Thin layers technology industry and agriculture food and beverages Carrier lifetime equipment and supplies 021001 nanoscience & nanotechnology Condensed Matter Physics Evaporation (deposition) digestive system diseases chemistry Chemical engineering 0210 nano-technology |
| Zdroj: | Journal of Crystal Growth. 570:126205 |
| ISSN: | 0022-0248 |
| DOI: | 10.1016/j.jcrysgro.2021.126205 |
| Popis: | In this work, we report on a facile fabrication method of bismuth nanoparticles consisting of evaporation of bismuth thin layers under a controlled environment. The investigated evaporation environments are vacuum, hydrogen gas, and plasma. The effects of the fabrication parameters on bismuth microstructural and morphological properties are studied using scanning electron microscopy (SEM) and x-ray diffraction (XRD) analysis. The parametric study demonstrates that, under the different conditions, the synthesized bismuth nanoparticles are quasi-spherical with a uniform density. Additionally, vapor–liquid-solid growth of silicon nanowires (SiNWs) catalyzed by bismuth is successfully achieved. The investigation of the effects of growth parameters shows that the density of the synthesized SiNWs was enhanced by increasing time. The SiNWs optoelectronics properties are also ameliorated in comparison to initial bismuth nanoparticles catalyst, namely the surface reflectivity and the minority carrier lifetime. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect