Journal of Synthetic Crystals, Volume. 52, Issue 9, 1660(2023)
Effect of Cu on the Al Content of Primary Silicon During the Purification of Solar-Grade Polysilicon by Al-50%Si Alloy Method
[1] [1] RAMREZ-MRQUEZ C, OTERO M V, VZQUEZ-CASTILLO J A, et al. Process design and intensification for the production of solar grade silicon[J]. Journal of Cleaner Production, 2018, 170: 1579-1593.
[2] [2] YOSHIKAWA T, MORITA K. An evolving method for solar-grade silicon production: solvent refining[J]. JOM, 2012, 64(8): 946-951.
[3] [3] LUO D W, LIU N, LU Y P, et al. Removal of boron from metallurgical grade silicon by electromagnetic induction slag melting[J]. Transactions of Nonferrous Metals Society of China, 2011, 21(5): 1178-1184.
[4] [4] MITRAINOVIC' A M, UTIGARD T A. Refining silicon for solar cell application by copper alloying[J]. Silicon, 2009, 1(4): 239-248.
[5] [5] HUANG L Q, LAI H X, LU C H, et al. Segregation behavior of iron in metallurgical grade silicon during SiCu solvent refining[J]. Vacuum, 2016, 129: 38-44.
[6] [6] YIN Z, OLIAZADEH A, ESFAHANI S, et al. Solvent refining of silicon using nickel as impurity getter[J]. Canadian Metallurgical Quarterly, 2011, 50(2): 166-172.
[7] [7] KHAJAVI L T, BARATI M. Thermodynamics of phosphorus in solvent refining of silicon using ferrosilicon alloys[J]. Metallurgical and Materials Transactions B, 2017, 48(1): 268-275.
[8] [8] SAKIANI H, TABAIAN S H, CHEN J. Effect of calcium addition on the silicon purification in the presence of low concentration of iron[J]. Journal of Alloys and Compounds, 2020, 830: 154112.
[9] [9] MA X D, YOSHIKAWA T, MORITA K. Purification of metallurgical grade Si combining Si-Sn solvent refining with slag treatment[J]. Separation and Purification Technology, 2014, 125: 264-268.
[10] [10] LI Y L, CHEN J. Boron and phosphorus removal during high purity hypereutectic Al-Si solidification[J]. Metals and Materials International, 2020, 26(4): 526-531.
[11] [11] LI Y L, BAN B Y, LI J W, et al. Effect of cooling rate on phosphorus removal during Al-Si solvent refining[J]. Metallurgical and Materials Transactions B, 2015, 46(2): 542-544.
[12] [12] OBINATA I, KOMATSU N. Method of refining silicon by alloying: experiments in semi-industrial scale[J]. Journal of the Japan Institute of Metals, 1954, 18: 283-285.
[13] [13] MORITA K, YOSHIKAWA T. Thermodynamic evaluation of new metallurgical refining processes for SOG-silicon production[J]. Transactions of Nonferrous Metals Society of China, 2011, 21(3): 685-690.
[14] [14] BAN B Y, LI J W, BAI X L, et al. Mechanism of B removal by solvent refining of silicon in Al-Si melt with Ti addition[J]. Journal of Alloys and Compounds, 2016, 672: 489-496.
[15] [15] CHEN K, CHEN X H, LEI Y, et al. Mechanism of enhancing B removal from Si with V addition using AlSi as the refining solvent[J]. Separation and Purification Technology, 2018, 203: 168-177.
[16] [16] LEI Y, MA W H, SUN L E, et al. Removal of B from Si by Hf addition during Al-Si solvent refining process[J]. Science and Technology of Advanced Materials, 2016, 17(1): 12-19.
[17] [17] ZHU M Y, YUE S Y, WU G X, et al. P removal from Si by Si-Ca-Al alloying-leaching refining: effect of Al and the Ca Al2Si2 phase[J]. Separation and Purification Technology, 2021, 271: 118675.
[18] [18] CHEN C, LI J, SONG W, et al. Enhancing P removal from primary Si by P-containing Al2Si2Sr phase during Al-Si solvent refining[J]. Materials Science in Semiconductor Processing, 2022,147:106769.
[19] [19] ULLAH M W, CARLBERG T. Silicon crystal morphologies during solidification refining from Al-Si melts[J]. Journal of Crystal Growth, 2011, 318(1): 212-218.
[20] [20] YU W Z, MA W H, ZHENG Z, et al. Si purification by removal of entrapped Al during electromagnetic solidification refining of Si-Al alloy[J]. Metallurgical and Materials Transactions B, 2017, 48(5): 2804-2811.
[21] [21] ARNBERG L, FREDRIKSSON H, EKEROT S, et al. Solvent refining of silicon for solar cells-some practical aspects[J]. Journal of Crystal Growth, 2020, 531: 125332.
[22] [22] YOSHIKAWA T, MORITA K. Solid solubilities and thermodynamic properties of aluminum in solid silicon[J]. Journal of the Electrochemical Society, 2003, 150(8): G465.
[23] [23] YOSHIKAWA T, MORITA K. Continuous solidification of Si from Si-Al melt under the induction heating[J]. ISIJ International, 2007, 47(4): 582-584.
[24] [24] LV G Q, BAO Y, ZHANG Y F, et al. Effects of electromagnetic directional solidification conditions on the separation of primary silicon from Al-Si alloy with high Si content[J]. Materials Science in Semiconductor Processing, 2018, 81: 139-148.
[25] [25] NISHI Y, KANG Y, MORITA K. Control of Si crystal growth during solidification of Si-Al melt[J]. Materials Transactions, 2010, 51(7): 1227-1230.
[26] [26] LI J W, LI J C, LIN Y H, et al. Separation and recovery of refined Si from Al-Si melt by modified czochralski method[J]. Materials, 2020, 13(4): 996.
[27] [27] YOSHIKAWA T, MORITA K. Refining of Si by the solidification of Si-Al melt with electromagnetic force[J]. ISIJ International, 2005, 45(7): 967-971.
[28] [28] OLESINSKI R W, ABBASCHIAN G J. The Cu-Si (copper-silicon) system[J]. Bulletin of Alloy Phase Diagrams, 1986, 7(2): 170-178.
[29] [29] YOSHIKAWA T, MORITA K. Activity measurements of Al and Cu in Si-Al-Cu melt at 1273 and 1373 K by the equilibration with molten Pb[J]. Journal of Alloys and Compounds, 2006, 420(1/2): 136-144.
[30] [30] GAO M M, ZHAO X, GAO A, et al. Effect of Si content on the morphology evolution of the Si primary dendrites in Al-Si alloy solvent refining process[J]. Silicon, 2022, 14(9): 4501-4508.
[33] [33] MIODOWNIK A P. Phase diagrams of binary copper alloys[M]. Materials Park, OH: ASM International,1994.
[34] [34] MURRAY J L, MCALISTER A J. The Al-Si (aluminum-silicon) system[J]. Bulletin of Alloy Phase Diagrams, 1984, 5(1): 74-84.
[35] [35] MIKI T, OGAWA N, NAGASAKA T, et al. Activity measurement of silicon in molten Cu-Si binary alloy[J]. ISIJ International, 2002, 42(10): 1071-1074.
[36] [36] PONWEISER N, LENGAUER C L, RICHTER K W. Re-investigation of phase equilibria in the system Al-Cu and structural analysis of the high-temperature phase η1-Al1-δCu[J]. Intermetallics, 2011, 19(11): 1737-1746.
[37] [37] HU L, WANG Z, GONG X Z, et al. Impurities removal from metallurgical-grade silicon by combined Sn-Si and Al-Si refining processes[J]. Metallurgical and Materials Transactions B, 2013, 44(4): 828-836.
[38] [38] LI J W, GUO Z C, LI J C, et al. Super gravity separation of purified Si from solvent refining with the Al-Si alloy system for solar grade silicon[J]. Silicon, 2015, 7(3): 239-246.
[39] [39] DORWARD R C, KIRKALDY J S. Thermodynamic properties of copper and gold in silicon and germanium[J]. Trans Met Soc AIME, 1968, 242(10).
[40] [40] YU Z Y, FU X, ZHU J. Revisiting the twin plane re-entrant edge growth mechanism at an atomic scale by electron microscopy[J]. Crystal Growth & Design, 2014, 14(9): 4411-4417.
Get Citation
Copy Citation Text
CHEN Wenyu, LIU Jiaxu, LIU Jialin, CHEN Jiahui, ZHANG Yintao, TANG Hong, ZHAO Ziwei, GAO Mangmang. Effect of Cu on the Al Content of Primary Silicon During the Purification of Solar-Grade Polysilicon by Al-50%Si Alloy Method[J]. Journal of Synthetic Crystals, 2023, 52(9): 1660
Category:
Received: Mar. 19, 2023
Accepted: --
Published Online: Oct. 7, 2023
The Author Email: Wenyu CHEN (chenwenyu2021@126.com)
CSTR:32186.14.