随着光伏产业的快速发展,对太阳能级硅原材料的需求不断增加。熔析结晶法作为一种冶金硅提纯的新工艺越来越受到重视。熔析结晶法是利用冶金硅中杂质元素的偏析行为,选择适当的熔析介质,使杂质元素从冶金硅中偏析到熔析介质中,进而获得高纯硅的方法。详细介绍了Al-Si、Sn-Si、Cu-Si、Fe-Si和Ca-Si等熔析体系对冶金硅提纯的研究现状,比较了各种介质体系的优缺点。同时针对熔析结晶法提纯硅存在的问题提出了一些建议。
The rapid development of photovoltaic industry results in the great demand of silicon feedstock for solar cells.Solvent refining of silicon as a new purification process,will be more emphasized.Solvent refining of silicon is a purification process in which recrystallized silicon takes place from the supersaturated melt depending on the segregation behavior of different elements between silicon and melt.In this paper,the research process on the main solvent systems,such as Al-Si,Sn-Si,Cu-Si,Fe-Si,Ca-Si,et al,is introduced in detail presently.Comparisons with the advantage and disadvantage of different solvent systems are discussed.At last,some suggestions were put forward for further purification.
参考文献
| [1] | Tanaka N .Technology roadmap: solar photovoltaic energy[R].Paris:International Energy Agency,2010. |
| [2] | Zulehner W. .Historical overview of silicon crystal pulling development[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2000(1/3):7-15. |
| [3] | Noriyoshi Yuge;Kazuhiro Hanazawa;Yoshiei Kato .Removal of Metal Impurities in Molten Silicon by Directional Solidification with Electron Beam Heating[J].Materials transactions,2004(3):850-857. |
| [4] | 刘德华,张国梁,马晓东,刘宁,李廷举.冶金法提纯工业硅的研究[J].功能材料,2009(11):1822-1824. |
| [5] | Wu J J;Ma W H;Yang B et al.Boron removal from metallurgical grade silicon by oxidizing refining[J].Transactions of Nonferrous Metals Society of China,2009,19:463-467. |
| [6] | Yin Sheng;He Xiaoming.prepared by combining cold Solar-grade silicon material plasma with by hydrometallurgy[J].Journal of Functional Materials,2002(03):305-306. |
| [7] | Pires JCS.;Braga AFB.;Mei PR. .Profile of impurities in polycrystalline silicon samples purified in an electron beam melting furnace[J].Solar Energy Materials and Solar Cells: An International Journal Devoted to Photovoltaic, Photothermal, and Photochemical Solar Energy Conversion,2003(3):347-355. |
| [8] | Wang Qiang;Dong Wei;Tan Yi.Investigation on the removel of phosphours,aluminum,calcium from metallurgical grade silicon using electron beam melting[J].Journal of Functional Materials,2010(z1):144-147. |
| [9] | 彭旭,董伟,谭毅,姜大川,王强,李国斌.电子束熔炼冶金级硅中杂质钙的蒸发行为[J].功能材料,2010(z1):117-120. |
| [10] | 赵立新,王志,郭占成,李成义.低温净化冶金硅工艺[J].中国有色金属学报（英文版）,2011(05):1185-1192. |
| [11] | Li J W;Guo Z C;Tang H Q et al.Si purification b solidification of Al-Si melt with super gravity[J].Transactions of Nonferrous Metals Society of China,2012,22(04):958-963. |
| [12] | Gumaste J L;Mohanty B C;Galgali R K et al.Refining of metallurgical grade silicon[J].Solar Energy Materials,1987,16(04):289-296. |
| [13] | Trumbore F A .Solid solubilities of impurity elements in germanium and silicon[J].Bell System Technical Journal,1960,39:205-233. |
| [14] | Aalberts J H;Verheijke M L .The solid solubility of nickel in silicon determined by neutron activation analysis[J].Applied Physics Letters,1962,1:19-20. |
| [15] | Feichtinger H;Czaputa R .Energy levels and solubility of interstitial chromium in silicon[J].Applied Physics Letters,1981,39:706-708. |
| [16] | Lin W;Hill D W .Oxygen segregation in czochralski silicon growth[J].Journal of Applied Physics,1983,54:1082-1085. |
| [17] | Takeshi Yoshikawa;Kazuki Morita .Solid Solubilities and Thermodynamic Properties of Aluminum in Solid Silicon[J].Journal of the Electrochemical Society,2003(8):G465-G468. |
| [18] | Hopkins R H;Rohatgi A .Impurity effects in silicon for high efficiency solar cells[J].Journal of Crystal Growth,1986,75:67-79. |
| [19] | Dawless R K;Troup R L;Meier D L et al.Production of extreme-purity aluminum and silicon by fractional crystallization processing[J].Journal of Crystal Growth,1988,89:68-74. |
| [20] | T. YOSHIKAWA;K. MORiTA .Refining of Si by the solidification of Si-Al melt with electromagnetic force[J].ISIJ International,2005(7):967-971. |
| [21] | Refining of silicon during its solidification from a Si-Al melt[J].Journal of Crystal Growth,2009(3):776. |
| [22] | TAKESHI YOSHIKAWA;KAZUKI MORITA .Removal of B from Si by Solidification Refining with Si-Al Melts[J].Metallurgical and Materials Transactions, B. Process metallurgy and materials processing science,2005(6):731-736. |
| [23] | Takeshi Yoshikawa;Kazuki Morita .Removal of phosphorus by the solidification refining with Si-Al melts[J].Science and technology of advanced materials,2003(6):531-537. |
| [24] | Xin Gu;Xuegong Yu;Deren Yang .Low-cost solar grade silicon purification process with Al-Si system using a powder metallurgy technique[J].Separation and Purification Technology,2011(1):33-39. |
| [25] | Ueda S;Morita K;Sano N .Thermodynamics of phosphorus in molten Si-Fe and Si-Mn alloys[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,1997,28:11511155. |
| [26] | Aleksandar M. Mitrasinovic;Torstein A. Utigard .Refining Silicon for Solar Cell Application by Copper Alloying[J].Silicon,2009(4):239–248. |
| [27] | Juneja J M;Mukherjee T K .A study of purification of metallurgical grade silicon[J].Hydrometallurgy,1986,16:69-75. |
| [28] | Kita K.;Wen CJ.;Otomo J.;Yamada K.;Komiyama H.;Takahashi H. .Study on the lateral growth of silicon films from metal solutions with temperature gradient[J].Journal of Crystal Growth,2002(1):153-158. |
| [29] | Bracht H .Copper related diffusion phenomena in germanium and silicon[J].Materials Science in Semiconductor Processing,2004,7:113-124. |
| [30] | Esfahani S;Barati M .Purification of metallurgical silicon using iron as an impurity getter part Ⅰ:growth and separation of Si[J].Metals and Materials International,2011,17(05):823-829. |
| [31] | Esfahani S;Barati M .Purification of metallurgical silicon using iron as impurity getter,part Ⅱ:extent of silicon purification[J].Met Mater lnt,2011,17(06):1009-1015. |
| [32] | Park J;Sassa K;Asai A S .Improvement of wear-resistance in hyper-eutectic AI-Si alloy by surface concentration of primary silicon using electromagnetic force[J].Journal of the Japan Institute of Metals,1995,59(07):733-739. |
| [33] | Min D J;Sano N .Determination of standard free energies of formation of Ca3P2 and Ca2Sn at high temperatures[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,1988,19(03):433-439. |
| [34] | TOMOHITO SHIMPO;TAKESHI YOSHIKAWA;KAZUKI MORITA .Thermodynamic Study of the Effect of Calcium on Removal of Phosphorus from Silicon by Acid Leaching Treatment[J].Metallurgical and Materials Transactions, B. Process metallurgy and materials processing science,2004(2):277-284. |
| [35] | Z. Yin;A. Oliazadeh;S. Esfahani .Solvent refining of silicon using nickel as impurity getter[J].Canadian Metallurgical Quarterly,2011(2):166-172. |
| [36] | TAKESHI YOSHIKAWA;KENTARO ARIMURA;KAZUKI MORITA .Boron Removal by Titanium Addition in Solidification Refining of Silicon with Si-Al Melt[J].Metallurgical and Materials Transactions, B. Process metallurgy and materials processing science,2005(6):837-842. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%