TY - JOUR
T1 - Thermodynamics of phosphorus in molten silicon
AU - Miki, Takahiro
AU - Morita, Kazuki
AU - Sano, Nobuo
PY - 1996
Y1 - 1996
N2 - Removal of phosphorus is one of the major problems on the purification of molten silicon for solar cell. The Gibbs energy change of phosphorus dissolution into molten silicon was determined in the temperature range from 1723 to 1848 K by equilibrating a molten silicon-phosphorus alloy in a controlled phosphorus partial pressure and is expressed by the following equations. 1/2P2(g) = P (mass pct, in Si) ΔG° = -139,000,(±2000) + 43.4 (±10.1T) (J/mol) The possibility of removing phosphorus from silicon melts by vacuum treatment and the accompanying yield of silicon during the refining process are discussed.
AB - Removal of phosphorus is one of the major problems on the purification of molten silicon for solar cell. The Gibbs energy change of phosphorus dissolution into molten silicon was determined in the temperature range from 1723 to 1848 K by equilibrating a molten silicon-phosphorus alloy in a controlled phosphorus partial pressure and is expressed by the following equations. 1/2P2(g) = P (mass pct, in Si) ΔG° = -139,000,(±2000) + 43.4 (±10.1T) (J/mol) The possibility of removing phosphorus from silicon melts by vacuum treatment and the accompanying yield of silicon during the refining process are discussed.
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U2 - 10.1007/s11663-996-0007-x
DO - 10.1007/s11663-996-0007-x
M3 - Article
AN - SCOPUS:0030410158
SN - 1073-5615
VL - 27
SP - 937
EP - 941
JO - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
JF - Metallurgical and Materials Transactions B: Process Metallurgy and Materials Processing Science
IS - 6
ER -