Preparation of 6N grade silicon ingot by combined purification processes from waste silicon cutting sludge
-
Jung-Min Oh
, Hyekyoung Kim , Hankwon Chang , Back-Kyu Lee , Hee Dong Jang und Jae-Won Lim
Abstract
This study is aimed at fabricating ultrahigh-purity silicon ingots from silicon cutting sludge – a byproduct of the ingot for solar cells cutting process. Firstly, silicon powder from the silicon cutting sludge was recovered by 1st purification, such as ultrasonication, centrifugation, and acid treatment before preparation of the silicon ingots. After the 1st purification, the silicon cutting sludge yielded silicon powder with a purity of 99.7612 %. The 1st-purified silicon powder was subjected to 2nd purification – 3 cycles hydrogen plasma arc melting (HPAM), resulting in ultrahigh-purity silicon ingot with a purity of 99.9999 %. HPAM has been verified to be an effective process for removal of B and P – the major impurities of silicon for semiconductors and solar cells – to levels of total ≤ 0.3 ppm.
References
[1] K.Tomono, S.Miyamoto, T.Ogawa, H.Furuya, Y.Okamura, M.Yoshimoto, R.Komatsu, M.Nakayama: Sep. Purif. Technol.120 (2013) 304. 10.1016/j.seppur.2013.10.014Suche in Google Scholar
[2] K.P.Jeong, Y.K.Kim: Sol. Energy Mater. Sol. Cells107 (2012) 201. 10.1016/j.solmat.2012.06.010Suche in Google Scholar
[3] H.D.Jang, H.Kim, D.S.Kil, H.Chang: J. Nanosci. Nanotechnol.13 (2013) 2334. 10.1166/jnn.2013.6909Suche in Google Scholar
[4] D.Sarti, R.Einhaus: Sol. Energy Mater. Sol. Cells72 (2002) 27. 10.1016/S0927-0248(01)00147-7Suche in Google Scholar
[5] M.A.Green, K.Emery, D.L.King, Y.Hisikawa, W.Warta: Prog. Photovolt: Res. Appl.14 (2006) 455. 10.1002/pip.720Suche in Google Scholar
[6] S.Nishijima, Y.Izumi, S.I.Takeda, H.Suemoto, A.Nakahira, S.I.Horie: IEEE Trans. Appl. Supercond.13 (2003) 1596. 10.1109/TASC.2003.812793Suche in Google Scholar
[7] S.H.Choi, B.Y.Jang, J.S.Lee, Y.S.Ahn, W.Y.Yoon, J.H.Joo: Renew. Energy54 (2013) 40. 10.1016/j.renene.2012.08.044Suche in Google Scholar
[8] B.P.Lee, H.M.Lee, D.H.Park, J.S.Shin, T.U.Yu, B.M.Moon: Sol. Energy Mater. Sol. Cells95 (2011) 56. 10.1016/j.solmat.2010.02.011Suche in Google Scholar
[9] J.W.Lim, K.Mimura, D.Miyawaki, J.M.Oh, G.S.Choi, S.B.Kim, M.Uchikoshi, MIsshiki: Mater. Lett.64 (2010) 2290. 10.1016/j.matlet.2010.01.069Suche in Google Scholar
[10] J.M.Oh, B.K.Lee, C.Y.Suh, J.W.Lim: J. Alloys Comp.574 (2013) 1. 10.1016/j.jallcom.2013.04.041Suche in Google Scholar
[11] Y.Waseda, M.Isshiki: Purification Process and Characterization of Ultra High Purity Metals, Springer, Tokyo (2001).Suche in Google Scholar
[12] J.Safarian, G.Tranell, M.Tangstad: Energy Procedia20 (2012) 88. 10.1016/j.egypro.2012.03.011Suche in Google Scholar
[13] W.Ji-jun, M.Wen-hui, Y.Bin, D.Yong-nian, K.Morita: Trans. Nonferrous Met. China19 (2009) 463. 10.1016/S1003-6326(08)60296-4Suche in Google Scholar
[14] D.M.Maijer, T.Ikeda, S.L.Cockcroft, M.Maeda, R.B.Rogge: Mater. Sci. Eng. A390 (2005) 188. 10.1016/j.msea.2004.08.036Suche in Google Scholar
[15] J.W.Lim, G.S.Choi, K.Mimura, M.Isshiki: Met. Mater. Int.14 (2008) 539. 10.3365/met.mat.2008.06.381Suche in Google Scholar
[16] G.M.Lalev, J.W.Lim, N.R.Munirathnam, G.S.Choi, M.Uchikoshi, K.Mimura, M.Isshiki: Mater. Trans.50 (2009) 618. 10.2320/matertrans.MRA2008205Suche in Google Scholar
© 2015, Carl Hanser Verlag, München
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Kinetics for gas–solid reactions involving dual-reaction interfaces
- Preparation of 6N grade silicon ingot by combined purification processes from waste silicon cutting sludge
- Material characterisation to identify the rheological behaviour for powder injection moulding
- Isothermal section of Nd–Mn–As phase diagram at 800 °C
- Influence of bath temperature and pH on the structure of electrodeposited cobalt nanowires
- Influence of combined grain refinement and modification on the microstructure, tensile strength and wear properties of Al-15Si, Al-15Si-4.5Cu alloys
- The investigation of mechanical properties of B4C-reinforced AlSi7 foams
- The stabilising effect of oxides in foamed aluminium alloy scrap
- Physical chemistry of WC-12 %Co coatings deposited by thermal spraying at different standoff distances
- Experimental investigation on the tensile behavior of a transparent polyurethane interlayer
- Short Communications
- Linearized analysis of X-ray stress measurement using the Debye–Scherrer ring
- Gas induced semi-solid process effects on microstructure and mechanical properties of 319 aluminum alloy
- Ductile fracture behavior of low carbon high strength steel using continuum damage mechanics
- Fabrication of β-Si3N4 whiskers by microwave sintering using ZrO2–Y2O3–Al2O3 as liquid phase
- People
- Berthold Scholtes on the occasion of his 65th birthday
- DGM News
- DGM News
Artikel in diesem Heft
- Contents
- Contents
- Original Contributions
- Kinetics for gas–solid reactions involving dual-reaction interfaces
- Preparation of 6N grade silicon ingot by combined purification processes from waste silicon cutting sludge
- Material characterisation to identify the rheological behaviour for powder injection moulding
- Isothermal section of Nd–Mn–As phase diagram at 800 °C
- Influence of bath temperature and pH on the structure of electrodeposited cobalt nanowires
- Influence of combined grain refinement and modification on the microstructure, tensile strength and wear properties of Al-15Si, Al-15Si-4.5Cu alloys
- The investigation of mechanical properties of B4C-reinforced AlSi7 foams
- The stabilising effect of oxides in foamed aluminium alloy scrap
- Physical chemistry of WC-12 %Co coatings deposited by thermal spraying at different standoff distances
- Experimental investigation on the tensile behavior of a transparent polyurethane interlayer
- Short Communications
- Linearized analysis of X-ray stress measurement using the Debye–Scherrer ring
- Gas induced semi-solid process effects on microstructure and mechanical properties of 319 aluminum alloy
- Ductile fracture behavior of low carbon high strength steel using continuum damage mechanics
- Fabrication of β-Si3N4 whiskers by microwave sintering using ZrO2–Y2O3–Al2O3 as liquid phase
- People
- Berthold Scholtes on the occasion of his 65th birthday
- DGM News
- DGM News