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Preservation of Seed Crystals in Feedstock Melting for Cast Quasi-Single Crystalline Silicon Ingots
Joint Authors
Zhang, Yunfeng
Meng, Qingchao
Hu, Zhiyan
Zhou, Genshu
Li, Zaoyang
Liu, Lijun
Source
International Journal of Photoenergy
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-10-10
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
The preservation of seed crystals is important for the casting of quasi-single crystalline (QSC) silicon ingots.
We carried out transient global simulations of the feedstock melting process in an industrial-sized directional solidification (DS) furnace to investigate key factors influencing seed preservation.
The power distribution between the top and side heaters is adjusted in the conventional furnace for multicrystalline silicon ingots and in the evolved furnace with a partition block for QSC silicon ingots.
The evolution of the solid-liquid interface for melting and the temperature distribution in the furnace core area are analyzed.
The power distribution can influence the temperature gradient in the silicon domain significantly.
However, its effect on seed preservation is limited in both furnaces.
Seed crystals can be preserved in the evolved furnace, as the partition block reduces the radiant heat flux from the insulation walls to the heat exchange block and prevents the heat flowing upwards under the crucible.
Therefore, the key to seed preservation is to control radiant heat transfer in the DS furnace and guarantee downward heat flux under the crucible.
American Psychological Association (APA)
Li, Zaoyang& Liu, Lijun& Zhang, Yunfeng& Meng, Qingchao& Hu, Zhiyan& Zhou, Genshu. 2013. Preservation of Seed Crystals in Feedstock Melting for Cast Quasi-Single Crystalline Silicon Ingots. International Journal of Photoenergy،Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-489096
Modern Language Association (MLA)
Li, Zaoyang…[et al.]. Preservation of Seed Crystals in Feedstock Melting for Cast Quasi-Single Crystalline Silicon Ingots. International Journal of Photoenergy No. 2013 (2013), pp.1-7.
https://search.emarefa.net/detail/BIM-489096
American Medical Association (AMA)
Li, Zaoyang& Liu, Lijun& Zhang, Yunfeng& Meng, Qingchao& Hu, Zhiyan& Zhou, Genshu. Preservation of Seed Crystals in Feedstock Melting for Cast Quasi-Single Crystalline Silicon Ingots. International Journal of Photoenergy. 2013. Vol. 2013, no. 2013, pp.1-7.
https://search.emarefa.net/detail/BIM-489096
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-489096