Optimization of the Raw Material Input Molar Ratio on the Carbothermal Production of Solar-Grade Silicon
Journal Title: Journal of New technology and Materials - Year 2017, Vol 7, Issue 1
Abstract
With the fast growth of solar cells market, it is strongly required to improve the fabrication process of solar-grade silicon, which is the base material for more than 93% of solar cells technology. Conventionally, solar-grade silicon is produced via the direct reduction of silica stone to metal-grade silicon by arc furnace followed by the Siemens method with chemical treatment and hydrogen. However, in this technique a low yield of solar-grade silicon is obtained with high energy cost due to its multiple complex processes. Meanwhile, it has been turned out that, the direct reduction process from silica sand to solar-grade silicon via induction furnace simplify the fabrication process with low energy and cost consumption with higher yield. In this study, the optimum partial pressure and temperature conditions of this process were based on the stability phase diagram for reduction reaction process. Using the simulation results, we succeeded to increase the reduction yield by ten times.
Authors and Affiliations
Rabie Benioub, Mohamed Adnane, Abderahmane Boucetta, Amina Chahtou, Hidekazu Kobatake, Yasubumi Furuya, Kenji Itaka
Keywords
Related Articles
- EP ID EP260133
- DOI -
- Views 47
- Downloads 0
First-principles calculation of defects structure in b2 NiTi
First-principles electronic structure calculations have been performed for defect structure in non-stoichiometric B2 NiTi. In order to determine the type of constitutional defects, the compositional dependence curves bot...
Vegetation effects on urban street microclimate and thermal comfort during overheated period under hot and dry climatic conditions
Urban Planning has a great impact on local microclimate which in turn affects the comfort and the space quality within a city. This directly influences the absorption and emission of incoming solar and outgoing long wave...
Spectroscopic study of poly (vinylidene fluoride)/ poly (methyl methacrylate) (PVDF/PMMA) blend
Poly (Poly (vinylidene fluoride)/poly (methyl methacrylate) blends casted in DMF could be used in the conservation of historic structures (monuments) exposed to atmospheric agents or as a coating to replace and maintain...
Removal of Zinc from water by adsorption on different adsorbent
The aim of this work is to study zinc removal possibility by adsorption on an Algerian bentonite (bentonite of Maghnia), goethite, powdered activated carbon (PAC) and kaolin. Various reaction parameter effects on process...
Structure and magnetic properties of monovalent doping charge ordering perovskite
The present paper reports detailed structural, magnetic and magnetocaloric characterizations of the charge ordered Nd0.5Ca0.4M0.1MnO3 (M=Na, K : NCNMO and NCKMO) polycrystalline samples. Our compounds were synthesized us...