Purification of metallurgical-grade silicon up to solar grade

N. Yuge, M. Abe, K. Hanazawa, H. Baba, N. Nakamura, Yoshiei Katou, Y. Sakaguchi, S. Hiwasa, F. Aratani

Research output: Contribution to journalArticle

126 Citations (Scopus)

Abstract

An estimate has been made of the feasibility of a metallurgical purification process, the NEDO (New Energy and Industrial Technology Development Organization) melt-purification process, for manufacturing solar-grade silicon from metallurgical-grade silicon. Equipment has been developed to pilot manufacturing plant scale. The system comprises an electron-beam furnace for phosphorus removal and a plasma furnace for boron removal Each furnace has a mold for directional solidification to remove metallic impurities. The concentration of each impurity in the silicon ingot purified through the whole process satisfied the solar-grade level The Solar-grade silicon produced showed p-type polarity and resistivity within the range 0.5-1.5 Ωcm.

Original languageEnglish
Pages (from-to)203-209
Number of pages7
JournalProgress in Photovoltaics: Research and Applications
Volume9
Issue number3
DOIs
Publication statusPublished - May 2001
Externally publishedYes

Fingerprint

Silicon
purification
Purification
grade
furnaces
silicon
Electron beam furnaces
Furnaces
manufacturing
Impurities
energy technology
impurities
Boron
ingots
Ingots
Phosphorus
Solidification
phosphorus
polarity
boron

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Fuel Technology
  • Physics and Astronomy (miscellaneous)
  • Renewable Energy, Sustainability and the Environment

Cite this

Purification of metallurgical-grade silicon up to solar grade. / Yuge, N.; Abe, M.; Hanazawa, K.; Baba, H.; Nakamura, N.; Katou, Yoshiei; Sakaguchi, Y.; Hiwasa, S.; Aratani, F.

In: Progress in Photovoltaics: Research and Applications, Vol. 9, No. 3, 05.2001, p. 203-209.

Research output: Contribution to journalArticle

Yuge, N, Abe, M, Hanazawa, K, Baba, H, Nakamura, N, Katou, Y, Sakaguchi, Y, Hiwasa, S & Aratani, F 2001, 'Purification of metallurgical-grade silicon up to solar grade', Progress in Photovoltaics: Research and Applications, vol. 9, no. 3, pp. 203-209. https://doi.org/10.1002/pip.372
Yuge, N. ; Abe, M. ; Hanazawa, K. ; Baba, H. ; Nakamura, N. ; Katou, Yoshiei ; Sakaguchi, Y. ; Hiwasa, S. ; Aratani, F. / Purification of metallurgical-grade silicon up to solar grade. In: Progress in Photovoltaics: Research and Applications. 2001 ; Vol. 9, No. 3. pp. 203-209.
@article{c198f648efda4d829c3481e95e6de9d9,
title = "Purification of metallurgical-grade silicon up to solar grade",
abstract = "An estimate has been made of the feasibility of a metallurgical purification process, the NEDO (New Energy and Industrial Technology Development Organization) melt-purification process, for manufacturing solar-grade silicon from metallurgical-grade silicon. Equipment has been developed to pilot manufacturing plant scale. The system comprises an electron-beam furnace for phosphorus removal and a plasma furnace for boron removal Each furnace has a mold for directional solidification to remove metallic impurities. The concentration of each impurity in the silicon ingot purified through the whole process satisfied the solar-grade level The Solar-grade silicon produced showed p-type polarity and resistivity within the range 0.5-1.5 Ωcm.",
author = "N. Yuge and M. Abe and K. Hanazawa and H. Baba and N. Nakamura and Yoshiei Katou and Y. Sakaguchi and S. Hiwasa and F. Aratani",
year = "2001",
month = "5",
doi = "10.1002/pip.372",
language = "English",
volume = "9",
pages = "203--209",
journal = "Progress in Photovoltaics: Research and Applications",
issn = "1062-7995",
publisher = "John Wiley and Sons Ltd",
number = "3",

}

TY - JOUR

T1 - Purification of metallurgical-grade silicon up to solar grade

AU - Yuge, N.

AU - Abe, M.

AU - Hanazawa, K.

AU - Baba, H.

AU - Nakamura, N.

AU - Katou, Yoshiei

AU - Sakaguchi, Y.

AU - Hiwasa, S.

AU - Aratani, F.

PY - 2001/5

Y1 - 2001/5

N2 - An estimate has been made of the feasibility of a metallurgical purification process, the NEDO (New Energy and Industrial Technology Development Organization) melt-purification process, for manufacturing solar-grade silicon from metallurgical-grade silicon. Equipment has been developed to pilot manufacturing plant scale. The system comprises an electron-beam furnace for phosphorus removal and a plasma furnace for boron removal Each furnace has a mold for directional solidification to remove metallic impurities. The concentration of each impurity in the silicon ingot purified through the whole process satisfied the solar-grade level The Solar-grade silicon produced showed p-type polarity and resistivity within the range 0.5-1.5 Ωcm.

AB - An estimate has been made of the feasibility of a metallurgical purification process, the NEDO (New Energy and Industrial Technology Development Organization) melt-purification process, for manufacturing solar-grade silicon from metallurgical-grade silicon. Equipment has been developed to pilot manufacturing plant scale. The system comprises an electron-beam furnace for phosphorus removal and a plasma furnace for boron removal Each furnace has a mold for directional solidification to remove metallic impurities. The concentration of each impurity in the silicon ingot purified through the whole process satisfied the solar-grade level The Solar-grade silicon produced showed p-type polarity and resistivity within the range 0.5-1.5 Ωcm.

UR - http://www.scopus.com/inward/record.url?scp=0035333394&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035333394&partnerID=8YFLogxK

U2 - 10.1002/pip.372

DO - 10.1002/pip.372

M3 - Article

AN - SCOPUS:0035333394

VL - 9

SP - 203

EP - 209

JO - Progress in Photovoltaics: Research and Applications

JF - Progress in Photovoltaics: Research and Applications

SN - 1062-7995

IS - 3

ER -