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Effect of Pulling Rate on Multicrystalline Silicon Ingot during Directional Solidification

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Abstract:

In this paper, the structure and composition of multicrystalline silicon ingots prepared by directional solidification with different pulling rates were analyzed to investigate the effect of pulling rate on the multicrystalline silicon ingot. The results showed that the lower pulling rate will make the site taking place constitutional supercooling move to the upper part of ingots and make the high purity area become larger. Lowering the pulling rate will decrease the impurity effective segregation coefficient and the solid-liquid interface curvature.

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Periodical:

Materials Science Forum (Volumes 675-677)

Pages:

53-56

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.675-677.53

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Online since:

February 2011

Authors:

Shi Hai Sun, Yi Tan, Hui Xing Zhang, Wei Dong, Jun Shan Zhang, Gen Xiong Hu

Keywords:

Directional Solidification, Purification, Segregation, Silicon, Solidification Rate

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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References

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