Study on Theoretical Basis and Process Optimization for Solar Grade Silicon Fabrication

Yong Chao Gao; Bai Tong Zhao

doi:10.4028/www.scientific.net/MSF.663-665.1069

Paper Titles

Wet-Chemical Processing and Angle-Dependent Optical Properties Characterization of Mica/TiO₂/Al₂O₃/M₂O₃ (M = Fe, Cr, Co) Pigments
p.1053

Synthesis and Characterization of D-Galactopyranose-Containing Amphiphilic Block Copolymers via ATRP
p.1057

Microstructure and Wear Resistance of Laser Cladding of Ni-Based Alloy on Copper Substrate
p.1061

Study on Surface Coating of BaO- B₂O₃-SiO₂ Glass-Ceramic Powders with Al₂O₃ for Water-Based Tape Casting
p.1065

Study on Theoretical Basis and Process Optimization for Solar Grade Silicon Fabrication
p.1069

Analysis of Stress in Aircraft Components Using Lock-In Thermography
p.1073

Fabrication the Texture Zinc Oxide Thin Films and its Application in Hydrogenated Amorphous Silicon Solar Cell
p.1077

Preparation and Properties of Zn_1-XCo_xO Magnetic Microspheres
p.1081

Fabrication of 1-3 Type Multiferroic Nanostructured Composite Films by Chemical Methods
p.1085

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Study on Theoretical Basis and Process Optimization for Solar Grade Silicon Fabrication

Abstract:

As solar energy is inexhaustible, solar cells have become one of the options to the future energy. The raw material silicon as one of the Earth's most abundant resources elements, have the advantage of non-toxic, no pollution, no radiation, high photoelectric conversion efficiency, stability and reliability of optical performance become the main raw material for production of solar cells. Because of its supply is limited, We used relatively inexpensive metallurgical grade silicon as a starting material to produce solar grade silicon for solar cells is considered relatively inexpensive method. Therefore, the removal of impurities from metal silicon witch reduce solar cell carrier lifetime and thus reducing its power generation efficiency is a significant issue. To this end, according to impurities in molten silicon and solid silicon demonstrated various characteristics and existence forms, in this paper we used acid leaching, directional solidification, electron and magnetic field, vacuum melting, blow reactive gases and so on to fabricate solar grade silicon from metal silicon in theory to analyze and optimize process.