NDLI: Effects of impurities concentration on the efficiency of solar cells manufactured with upgrade metallurgical silicon

Content Provider	IEEE Xplore Digital Library
Author	Cortes, A.D.S. Silva, D.S. Viana, G.A. Motta, E.F. Zampieri, P.R. Marques, F.C. Mei, P.R.
Copyright Year	2011
Description	Author affiliation: Instituto de Física Gleb Wataghin - IFGW, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil (Silva, D.S.; Viana, G.A.; Motta, E.F.; Marques, F.C.) \|\| Faculdade de Engenharia Mecânica - FEM, Universidade Estadual de Campinas, Campinas, São Paulo, Brasil (Cortes, A.D.S.; Zampieri, P.R.; Mei, P.R.)
Abstract	In this work we reported the production of upgraded metallurgical grade silicon using a combination of different purification techniques, i.e., vacuum degassing, directional solidification and Czochralski growth. Chemical composition, resistivity and efficiency of silicon solar cells are presented. It was observed that those methods have different purification efficiency for different elements. The use of vacuum degassing is demonstrated to be a potential procedure to be used in a combination with other techniques to reduce impurities in metallurgical silicon as well as reduce the final price of the silicon wafers. The combination of vacuum degassing and Czochralski method provided upgraded metallurgical grade silicon. Solar cells efficiency approaching 10% was obtained using this material.
Starting Page	002147
Ending Page	002150
File Size	130417
Page Count	4
File Format	PDF
ISBN	9781424499663
ISSN	01608371
e-ISBN	9781424499656
DOI	10.1109/PVSC.2011.6186380
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-06-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Silicon Impurities Photovoltaic cells Conductivity Boron Purification Vacuum technology
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Electrical and Electronic Engineering

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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