Seven Editora
##common.pageHeaderLogo.altText##
##common.pageHeaderLogo.altText##


Contato

  • Seven Publicações Ltda CNPJ: 43.789.355/0001-14 Rua: Travessa Aristides Moleta, 290- São José dos Pinhais/PR CEP: 83045-090
  • Contato Principal
  • Nathan Albano Valente
  • (41) 9 8836-2677
  • editora@sevenevents.com.br
  • Contato para Suporte Técnico
  • contato@sevenevents.com.br

Use of low-doped emitters in the characterization of silicon wafers

Ramos CAS;
Stem N;
Sánchez MC

Carlos Alberto Santos Ramos

Nair Stem

Manuel Cid Sánchez


Resumo

This work has as main objective the qualification of the silicon used as a substrate in the manufacture of solar cells, through the technique of photoconductive decay (technique widely used in the sectors of research and industrial production of this type of devices).

The use of this technique together with the  passivation of surfaces, through the formation of low doped phosphorus emitters (n+pn+ structure), allows the extraction of parameters that will assist the process engineer in the tasks of simulation and theoretical-experimental optimiza-tion of the steps that make up the complete manufacturing process.

The samples, processed in open tube furnaces through the pre-deposition of phosphorus (liquid source of POCl3) followed by oxidation in chlorinated environment (by means of TCA), are characterized with the WCT-100 "Lifetime Tester" equipment, for its effective lifetime (τeff - transient and quasi-static modes).

Using the data of the inverse of the lifetime as a function of the concentration of carriers, infor-mation is obtained regarding the volume of the material and the phosphorus emitters formed, thus enabling the analysis of the quality of the material and fundamental stages of the manufacturing process.

 

DOI:https://doi.org/10.56238/uniknowindevolp-134


Creative Commons License

Este trabalho está licenciado sob uma licença Creative Commons Attribution-NonCommercial 4.0 International License.

Copyright (c) 2023 Carlos Alberto Santos Ramos, Nair Stem , Manuel Cid Sánchez

##plugins.themes.gdThemes.article.Authors##

  • Carlos Alberto Santos Ramos
  • Nair Stem
  • Manuel Cid Sánchez