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Control of the Gas Flow in an Industrial Directional Solidification Furnace for Production of High Purity Multicrystalline Silicon Ingots
Joint Authors
Qi, Xiaofang
Ma, Wencheng
Zhang, Yunfeng
Li, Zaoyang
Liu, Lijun
Source
International Journal of Photoenergy
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-07-26
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
A crucible cover was designed as gas guidance to control the gas flow in an industrial directional solidification furnace for producing high purity multicrystalline silicon.
Three cover designs were compared to investigate their effect on impurity transport in the furnace and contamination of the silicon melt.
Global simulations of coupled oxygen (O) and carbon (C) transport were carried out to predict the SiO and CO gases in the furnace as well as the O and C distributions in the silicon melt.
Cases with and without chemical reaction on the cover surfaces were investigated.
It was found that the cover design has little effect on the O concentration in the silicon melt; however, it significantly influences CO gas transport in the furnace chamber and C contamination in the melt.
For covers made of metal or with a coating on their surfaces, an optimal cover design can produce a silicon melt free of C contamination.
Even for a graphite cover without a coating, the carbon concentration in the silicon melt can be reduced by one order of magnitude.
The simulation results demonstrate a method to control the contamination of C impurities in an industrial directional solidification furnace by crucible cover design.
American Psychological Association (APA)
Liu, Lijun& Qi, Xiaofang& Ma, Wencheng& Li, Zaoyang& Zhang, Yunfeng. 2015. Control of the Gas Flow in an Industrial Directional Solidification Furnace for Production of High Purity Multicrystalline Silicon Ingots. International Journal of Photoenergy،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1066521
Modern Language Association (MLA)
Liu, Lijun…[et al.]. Control of the Gas Flow in an Industrial Directional Solidification Furnace for Production of High Purity Multicrystalline Silicon Ingots. International Journal of Photoenergy No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1066521
American Medical Association (AMA)
Liu, Lijun& Qi, Xiaofang& Ma, Wencheng& Li, Zaoyang& Zhang, Yunfeng. Control of the Gas Flow in an Industrial Directional Solidification Furnace for Production of High Purity Multicrystalline Silicon Ingots. International Journal of Photoenergy. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1066521
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1066521