Novel recycling method for boron removal from silicon by thermal plasma treatment coupled with steam and hydrogen gases

Su Hyun Baek; Hyunjae Lee; Dong Joon Min; Su Ji Choi; Byung Moon Moon; Hyun Do Jung

doi:10.3390/met7100401

Novel recycling method for boron removal from silicon by thermal plasma treatment coupled with steam and hydrogen gases

Su Hyun Baek, Hyunjae Lee, Dong Joon Min, Su Ji Choi, Byung Moon Moon, Hyun Do Jung

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Boron (B) separation from photovoltaic silicon (Si) remains a research challenge in the recycling field. In this study, a novel B-removal process was developed using thermal plasma treatment coupled with steam and hydrogen gases. Experiments were performed on artificially B-doped Si using various plasma conditions of mixed argon (Ar)/steam/hydrogen gases and varied refining time. The B concentration in all of the samples decreased with increasing refining time. The use of the plasma mixed with Ar/steam/hydrogen gases resulted in a significant improvement of the efficiency of B removal compared with the Ar/steam plasma refining. In addition, with increasing steam content in the plasma with mixed Ar/steam/hydrogen gases, the B-removal rates increased.

Original language	English
Article number	401
Journal	Metals
Volume	7
Issue number	10
DOIs	https://doi.org/10.3390/met7100401
State	Published - Oct 2017

Bibliographical note

Publisher Copyright:
© 2017 by the authors.

Keywords

Boron
Plasma
Recycling
Refining
Silicon
Solar cell

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/met7100401

Cite this

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title = "Novel recycling method for boron removal from silicon by thermal plasma treatment coupled with steam and hydrogen gases",

abstract = "Boron (B) separation from photovoltaic silicon (Si) remains a research challenge in the recycling field. In this study, a novel B-removal process was developed using thermal plasma treatment coupled with steam and hydrogen gases. Experiments were performed on artificially B-doped Si using various plasma conditions of mixed argon (Ar)/steam/hydrogen gases and varied refining time. The B concentration in all of the samples decreased with increasing refining time. The use of the plasma mixed with Ar/steam/hydrogen gases resulted in a significant improvement of the efficiency of B removal compared with the Ar/steam plasma refining. In addition, with increasing steam content in the plasma with mixed Ar/steam/hydrogen gases, the B-removal rates increased.",

keywords = "Boron, Plasma, Recycling, Refining, Silicon, Solar cell",

author = "Baek, {Su Hyun} and Hyunjae Lee and Min, {Dong Joon} and Choi, {Su Ji} and Moon, {Byung Moon} and Jung, {Hyun Do}",

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doi = "10.3390/met7100401",

language = "English",

volume = "7",

journal = "Metals",

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TY - JOUR

T1 - Novel recycling method for boron removal from silicon by thermal plasma treatment coupled with steam and hydrogen gases

AU - Baek, Su Hyun

AU - Lee, Hyunjae

AU - Min, Dong Joon

AU - Choi, Su Ji

AU - Moon, Byung Moon

AU - Jung, Hyun Do

PY - 2017/10

Y1 - 2017/10

N2 - Boron (B) separation from photovoltaic silicon (Si) remains a research challenge in the recycling field. In this study, a novel B-removal process was developed using thermal plasma treatment coupled with steam and hydrogen gases. Experiments were performed on artificially B-doped Si using various plasma conditions of mixed argon (Ar)/steam/hydrogen gases and varied refining time. The B concentration in all of the samples decreased with increasing refining time. The use of the plasma mixed with Ar/steam/hydrogen gases resulted in a significant improvement of the efficiency of B removal compared with the Ar/steam plasma refining. In addition, with increasing steam content in the plasma with mixed Ar/steam/hydrogen gases, the B-removal rates increased.

AB - Boron (B) separation from photovoltaic silicon (Si) remains a research challenge in the recycling field. In this study, a novel B-removal process was developed using thermal plasma treatment coupled with steam and hydrogen gases. Experiments were performed on artificially B-doped Si using various plasma conditions of mixed argon (Ar)/steam/hydrogen gases and varied refining time. The B concentration in all of the samples decreased with increasing refining time. The use of the plasma mixed with Ar/steam/hydrogen gases resulted in a significant improvement of the efficiency of B removal compared with the Ar/steam plasma refining. In addition, with increasing steam content in the plasma with mixed Ar/steam/hydrogen gases, the B-removal rates increased.

KW - Boron

KW - Plasma

KW - Recycling

KW - Refining

KW - Silicon

KW - Solar cell

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U2 - 10.3390/met7100401

DO - 10.3390/met7100401

M3 - Article

AN - SCOPUS:85031283513

SN - 2075-4701

VL - 7

JO - Metals

JF - Metals

IS - 10

M1 - 401

ER -

Novel recycling method for boron removal from silicon by thermal plasma treatment coupled with steam and hydrogen gases

Abstract

Bibliographical note

Keywords

UN SDGs

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