Effect of pellet size and additive on silica carbothermic reduction in microwave furnace for solar grade silicon
| Autor: | A. Abderrahmane, S. Hamzaoui, Ilyes Baba Ahmed, Fillali Cherif |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
inorganic chemicals
Materials science Silicon Pellet size chemistry.chemical_element 02 engineering and technology 01 natural sciences complex mixtures Nanomaterials Reduction (complexity) microwave furnace 0103 physical sciences General Materials Science Materials of engineering and construction. Mechanics of materials 010302 applied physics Mechanical Engineering carbon Metallurgy technology industry and agriculture solar grade silicon 021001 nanoscience & nanotechnology Condensed Matter Physics equipment and supplies stomatognathic diseases chemistry Mechanics of Materials silica solar cells TA401-492 0210 nano-technology Microwave |
| Zdroj: | Materials Science-Poland, Vol 37, Iss 1, Pp 122-126 (2019) |
| Popis: | Silicon as a raw material for solar cells can be produced by numerous methods. The carbothermic reduction of silica using electric arc furnace is the most widely used process in silicon industry. This paper presents a new approach to produce solar grade silicon using microwave furnace. Pellets of different sizes were prepared from a mixture of silica and carbon using water and polyvinyl alcohol as binder agents. Raman spectra indicated a peak at about 515 cm−1 attributed to silicon in the pellets prepared with polyvinyl alcohol, and peaks at about 523 cm−1 and 794 cm−1 attributed to silicon and silicon carbide, in the pellets prepared with water. The pellet size affects the absorption of microwave energy emitted from the magnetrons. Polyvinyl alcohol as a binder agent is promising for the production of silicon using microwave furnace. |
| Databáze: | OpenAIRE |
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