Methods and apparatuses for manufacturing monocrystalline cast silicon and monocrystalline cast silicon bodies for photovoltaics

Stoddard, Nathan G

Title: Methods and apparatuses for manufacturing monocrystalline cast silicon and monocrystalline cast silicon bodies for photovoltaics

Patent · Tue Nov 01 00:00:00 EDT 2011

OSTI ID:1033936

Stoddard, Nathan G ^[1]

Gettysburg, PA

Methods and apparatuses are provided for casting silicon for photovoltaic cells and other applications. With such methods and apparatuses, a cast body of monocrystalline silicon may be formed that is free of, or substantially free of, radially-distributed impurities and defects and having at least two dimensions that are each at least about 35 cm is provided.

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Research Organization:: National Renewable Energy Laboratory (NREL), Golden, CO (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC36-98GO10337

Assignee:: Stoddard, Nathan G. (Gettysburg, PA)

Patent Number(s):: 8,048,221

Application Number:: 11/624,365

OSTI ID:: 1033936

Country of Publication:: United States

Language:: English

References (10)

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Directionally solidified solar-grade silicon using carbon crucibles Ciszek, T. F.; Schwuttke, G. H.; Yang, K. H. Journal of Crystal Growth, Vol. 46, Issue 4, p. 527-533 https://doi.org/10.1016/0022-0248(79)90041-1	journal	April 1979
Bulk multicrystalline silicon growth for photovoltaic (PV) application Wu, Bei; Stoddard, Nathan; Ma, Ronghui Journal of Crystal Growth, Vol. 310, Issue 7-9, p. 2178-2184 https://doi.org/10.1016/j.jcrysgro.2007.11.194	journal	April 2008
Growth of multicrystalline Si with controlled grain boundary configuration by the floating zone technique Kitamura, Masayuki; Usami, Noritaka; Sugawara, Takamasa Journal of Crystal Growth, Vol. 280, Issue 3-4, p. 419-424 https://doi.org/10.1016/j.jcrysgro.2005.04.049	journal	July 2005
Development of a rapid solidification process with a double-roller method Shibuya, Kiyoshi; Kogiku, Fumio; Yukumoto, Masao Materials Science and Engineering, Vol. 98, p. 25-28 https://doi.org/10.1016/0025-5416(88)90119-X	journal	February 1988
Some Applications of Cold Crucible Technology for Silicon Photovoltaic Material Preparation Ciszek, T. F. Journal of The Electrochemical Society, Vol. 132, Issue 4 https://doi.org/10.1149/1.2113994	journal	January 1985
Growth of Silicon Ingots by Hem for Photovoltaic Applications Khattak, C. P.; Schmid, F. Silicon Processing for Photovoltaics II https://doi.org/10.1016/B978-0-444-87024-7.50010-X	book	January 1987
Electromagnetic continuous pulling process compared to current casting processes with respect to solidification characteristics Durand, Francis Solar Energy Materials and Solar Cells, Vol. 72, Issue 1-4, p. 125-132 https://doi.org/10.1016/S0927-0248(01)00157-X	journal	April 2002
Relaxation of thermal stresses by dislocation flow and multiplication in the continuous casting of silicon Dour, G.; Durand, F.; Brechet, Y. Modelling and Simulation in Materials Science and Engineering, Vol. 5, Issue 3 https://doi.org/10.1088/0965-0393/5/3/006	journal	May 1997
Numerical and Experimental Study of the Electromagnetic Continuous Casting of Silicon Shin, Je Sik; Kim, H. S.; Lee, Sang Mok Materials Science Forum, Vol. 475-479 https://doi.org/10.4028/www.scientific.net/MSF.475-479.2671	journal	January 2005

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