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Study on Si-P-Fe and Si-P-Al ternary System Interactions Applied by MIVM Model for the Process of Specific Actual Production

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Abstract

The content of P in industrial silicon affects the photoelectric conversion efficiency of solar-grade silicon. Based on a large amount of actual production data, this paper uses statistical analysis and MIVM model to study the influence of Fe and Al content on P content in the actual production process of Si-P-Fe and Si-P-Al ternary systems. The results showed that statistical analysis (linear regression) were in good agreement with the results of Si-P-Fe and Si-P-Al calculated by the MIVM model.The presence of Fe and Al at the same temperature has a negative impact on the removal of P, and Al has a greater impact on P.The presence of Fe and Al at the same temperature has a negative impact on the removal of P, and Al has a greater impact on P. The MIVM model calculation results provide a theoretical and technical basis for the development of metallurgical methods to prepare solar-grade polysilicon.

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Acknowledgements

The authors are grateful for financial support from the National Natural Science Foundation of China (No. 51804147) and Ten Thousand Talent Plans for Young Top-notch Talents of Yunnan Province (No. YNWR-QNBJ-2020-022) and the Major Projects of Yunnan Province (No. 202102AB080013).

Funding

The authors are grateful for financial support from the National Natural Science Foundation of China (No. 51804147) and and the Major Projects of Yunnan Province (No. 202102AB080013).

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Authors and Affiliations

  1. Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, 650093, China

    Yaqian Zhu, Zhengjie Chen, Hongmei Zhang, Wenhui Ma & Jijun Wu

  2. State Key Laboratory of Complex Nonferrous Metal Resources Cleaning Utilization in Yunnan Province, Kunming University of Science and Technology, Kunming, 650093, China

    Yaqian Zhu, Zhengjie Chen, Hongmei Zhang, Wenhui Ma & Jijun Wu

  3. The National Engineering Laboratory for Vacuum Metallurgy, Kunming University of Science and Technology, Kunming, 650093, China

    Zhengjie Chen, Wenhui Ma & Jijun Wu

  4. Pu’Er University, Pu’er, 665000, China

    Wenhui Ma

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  1. Yaqian Zhu
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  2. Zhengjie Chen
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Contributions

Yaqian Zhu: Conceptualization, Resources, Writing—review & editing, Visualization, Validation, Supervision. Zhengjie Chen: Formal analysis, Validation, Data curation, Writing-original draft, Writing-review&editing. Hongmei Zhang: Conceptualization, Resources, Visualization. Wenhui Ma: Writing—review & editing, Visualization, Supervision.

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Correspondence to Zhengjie Chen.

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Zhu, Y., Chen, Z., Zhang, H. et al. Study on Si-P-Fe and Si-P-Al ternary System Interactions Applied by MIVM Model for the Process of Specific Actual Production. Silicon 14, 10571–10579 (2022). https://doi.org/10.1007/s12633-022-01698-4

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