Analysis of the chemical bath and its effect on the physical properties of CdS/ITO thin films
Autor(a) principal: | |
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Data de Publicação: | 2006 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Physics |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600068 |
Resumo: | Cadmium sulphide (CdS) thin films deposited on indium tin oxide (ITO) substrates were prepared by the chemical bath deposition technique at different values of pH and pNH3. This was made in order to analyze the influence of the initial chemical composition of the bath on some physical properties of the final CdS films, used as optical windows for solar cells. The mechanism proposed in the literature for this deposition involves the tetra-ammonium cadmium (II) complex, Cd(NH$_{3})_{4}^{2+}$, at the start of the reaction. Following this mechanism, the change in the concentration of Cd(NH$_{3})_{4}^{2+}$ gives a variation in the rate of deposition with the corresponding modification in the quality of the film. Therefore, the predominance zone diagram of Cd2 + species in solution as a function of the values of pH and pNH3 was used to analyze the reasons why the CdS/ITO thin films are favored in just a narrow range of ammonium and hydroxide concentrations. To obtain useful films, the results showed that low ammonium concentrations must be avoided at high pH values as well as high ammonium concentrations at lower pH values. |
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Brazilian Journal of Physics |
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Analysis of the chemical bath and its effect on the physical properties of CdS/ITO thin filmsChemical bath analysisCadmium sulphideSemiconductor filmPredominance diagramsCadmium sulphide (CdS) thin films deposited on indium tin oxide (ITO) substrates were prepared by the chemical bath deposition technique at different values of pH and pNH3. This was made in order to analyze the influence of the initial chemical composition of the bath on some physical properties of the final CdS films, used as optical windows for solar cells. The mechanism proposed in the literature for this deposition involves the tetra-ammonium cadmium (II) complex, Cd(NH$_{3})_{4}^{2+}$, at the start of the reaction. Following this mechanism, the change in the concentration of Cd(NH$_{3})_{4}^{2+}$ gives a variation in the rate of deposition with the corresponding modification in the quality of the film. Therefore, the predominance zone diagram of Cd2 + species in solution as a function of the values of pH and pNH3 was used to analyze the reasons why the CdS/ITO thin films are favored in just a narrow range of ammonium and hydroxide concentrations. To obtain useful films, the results showed that low ammonium concentrations must be avoided at high pH values as well as high ammonium concentrations at lower pH values.Sociedade Brasileira de Física2006-09-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600068Brazilian Journal of Physics v.36 n.3b 2006reponame:Brazilian Journal of Physicsinstname:Sociedade Brasileira de Física (SBF)instacron:SBF10.1590/S0103-97332006000600068info:eu-repo/semantics/openAccessHerrera,S.Ramos,C. M.Patiño,R.Peña,J. L.Cauich,W.Oliva,A. I.eng2006-11-29T00:00:00Zoai:scielo:S0103-97332006000600068Revistahttp://www.sbfisica.org.br/v1/home/index.php/pt/ONGhttps://old.scielo.br/oai/scielo-oai.phpsbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br1678-44480103-9733opendoar:2006-11-29T00:00Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF)false |
dc.title.none.fl_str_mv |
Analysis of the chemical bath and its effect on the physical properties of CdS/ITO thin films |
title |
Analysis of the chemical bath and its effect on the physical properties of CdS/ITO thin films |
spellingShingle |
Analysis of the chemical bath and its effect on the physical properties of CdS/ITO thin films Herrera,S. Chemical bath analysis Cadmium sulphide Semiconductor film Predominance diagrams |
title_short |
Analysis of the chemical bath and its effect on the physical properties of CdS/ITO thin films |
title_full |
Analysis of the chemical bath and its effect on the physical properties of CdS/ITO thin films |
title_fullStr |
Analysis of the chemical bath and its effect on the physical properties of CdS/ITO thin films |
title_full_unstemmed |
Analysis of the chemical bath and its effect on the physical properties of CdS/ITO thin films |
title_sort |
Analysis of the chemical bath and its effect on the physical properties of CdS/ITO thin films |
author |
Herrera,S. |
author_facet |
Herrera,S. Ramos,C. M. Patiño,R. Peña,J. L. Cauich,W. Oliva,A. I. |
author_role |
author |
author2 |
Ramos,C. M. Patiño,R. Peña,J. L. Cauich,W. Oliva,A. I. |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Herrera,S. Ramos,C. M. Patiño,R. Peña,J. L. Cauich,W. Oliva,A. I. |
dc.subject.por.fl_str_mv |
Chemical bath analysis Cadmium sulphide Semiconductor film Predominance diagrams |
topic |
Chemical bath analysis Cadmium sulphide Semiconductor film Predominance diagrams |
description |
Cadmium sulphide (CdS) thin films deposited on indium tin oxide (ITO) substrates were prepared by the chemical bath deposition technique at different values of pH and pNH3. This was made in order to analyze the influence of the initial chemical composition of the bath on some physical properties of the final CdS films, used as optical windows for solar cells. The mechanism proposed in the literature for this deposition involves the tetra-ammonium cadmium (II) complex, Cd(NH$_{3})_{4}^{2+}$, at the start of the reaction. Following this mechanism, the change in the concentration of Cd(NH$_{3})_{4}^{2+}$ gives a variation in the rate of deposition with the corresponding modification in the quality of the film. Therefore, the predominance zone diagram of Cd2 + species in solution as a function of the values of pH and pNH3 was used to analyze the reasons why the CdS/ITO thin films are favored in just a narrow range of ammonium and hydroxide concentrations. To obtain useful films, the results showed that low ammonium concentrations must be avoided at high pH values as well as high ammonium concentrations at lower pH values. |
publishDate |
2006 |
dc.date.none.fl_str_mv |
2006-09-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600068 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-97332006000600068 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0103-97332006000600068 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Sociedade Brasileira de Física |
publisher.none.fl_str_mv |
Sociedade Brasileira de Física |
dc.source.none.fl_str_mv |
Brazilian Journal of Physics v.36 n.3b 2006 reponame:Brazilian Journal of Physics instname:Sociedade Brasileira de Física (SBF) instacron:SBF |
instname_str |
Sociedade Brasileira de Física (SBF) |
instacron_str |
SBF |
institution |
SBF |
reponame_str |
Brazilian Journal of Physics |
collection |
Brazilian Journal of Physics |
repository.name.fl_str_mv |
Brazilian Journal of Physics - Sociedade Brasileira de Física (SBF) |
repository.mail.fl_str_mv |
sbfisica@sbfisica.org.br||sbfisica@sbfisica.org.br |
_version_ |
1754734863389294592 |