Synthesis of silicon nanoparticles using a novel reactor with an elongated reaction zone created by coaxially aligned SiH4 gas and a CO2 laser beam
| Autor: | Seok-Ho Maeng, Seongbeom Kim, Hakju Lee |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Diffraction
Materials science Silicon Reaction zone chemistry.chemical_element Nanoparticle Bioengineering 02 engineering and technology 010402 general chemistry 01 natural sciences General Materials Science Co2 laser business.industry General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Atomic and Molecular Physics and Optics 0104 chemical sciences chemistry Transmission electron microscopy Modeling and Simulation Optoelectronics 0210 nano-technology business Pyrolysis Beam (structure) |
| Zdroj: | Journal of Nanoparticle Research. 23 |
| ISSN: | 1572-896X 1388-0764 |
| DOI: | 10.1007/s11051-021-05262-w |
| Popis: | We demonstrated silicon nanoparticle synthesis using a novel CO2 laser pyrolysis reactor. The reactor was designed to have an elongated reaction zone more than 10 times longer than conventional laser pyrolysis systems by aligning the laser beam and precursor gas stream in the same direction within the simple tubular reactor. Experimental results showed that the elongated reaction zone contributed to production of silicon nanoparticles using SiH4 gas and influenced the size distribution of nanoparticles. Since the proposed reactor utilized the laser beam more efficiently without focusing the laser beam, it would be beneficial to large-scale production tolerating higher power CO2 lasers. Silicon nanoparticle synthesis mechanisms using a proposed reactor and synthesized nanoparticles were discussed in detail based on X-ray diffraction and transmission electron microscopy measurements. |
| Databáze: | OpenAIRE |
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