Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/108685
Type: Artigo de evento
Title: Effects Of Impurities Concentration On The Efficiency Of Solar Cells Manufactured With Upgrade Metallurgical Silicon
Author: Cortes A.D.S.
Silva D.S.
Viana G.A.
Motta E.F.
Zampieri P.R.
Marques F.C.
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. © 2011 IEEE.
Editor: 
Rights: fechado
Identifier DOI: 10.1109/PVSC.2011.6186380
Address: http://www.scopus.com/inward/record.url?eid=2-s2.0-84861029466&partnerID=40&md5=81ae550199775016092fc9571aa73153
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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