Wide band-gap tuning Cu2ZnSn1-xGexS4 single crystals: optical and vibrational properties

The linear optical properties of Cu2ZnSn1-xGexS4 high quality single crystals with a wide range of Ge contents (x = 0.1, 0.3, 0.5, 0.7, 0.9 and 1) have been investigated in the ultraviolet and near infrared range using spectroscopic ellipsometry measurements. From the analysis of the complex dielect...

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Autores: Garcia Llamas, Elena, Merino, José Manuel, Serna, Rosalía, Fontané Sánchez, Xavier, Victorov, Ivan A., Pérez Rodríguez, Alejandro, León, Máximo, Bodnar, Ivan V., Izquierdo Roca, Victor, Caballero, Raquel
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2015
País:España
Institución:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
Repositorio:Recercat. Dipósit de la Recerca de Catalunya
OAI Identifier:oai:recercat.cat:2445/124956
Acceso en línea:https://hdl.handle.net/2445/124956
Access Level:acceso abierto
Palabra clave:Propietats òptiques
Espectroscòpia Raman
Cèl·lules solars
El·lipsometria
Optical properties
Raman spectroscopy
Solar cells
Ellipsometry
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spelling Wide band-gap tuning Cu2ZnSn1-xGexS4 single crystals: optical and vibrational propertiesGarcia Llamas, ElenaMerino, José ManuelSerna, RosalíaFontané Sánchez, XavierVictorov, Ivan A.Pérez Rodríguez, AlejandroLeón, MáximoBodnar, Ivan V.Izquierdo Roca, VictorCaballero, RaquelPropietats òptiquesEspectroscòpia RamanCèl·lules solarsEl·lipsometriaOptical propertiesRaman spectroscopySolar cellsEllipsometryThe linear optical properties of Cu2ZnSn1-xGexS4 high quality single crystals with a wide range of Ge contents (x = 0.1, 0.3, 0.5, 0.7, 0.9 and 1) have been investigated in the ultraviolet and near infrared range using spectroscopic ellipsometry measurements. From the analysis of the complex dielectric function spectra it has been found that the bandgap E0 increases continuously from 1.49 eV to 2.25 eV with the Ge content. Furthermore, the evolution of the interband transitions E1A and E1B has been also determined. Raman scattering using three different excitation wavelengths and its analysis have been performed to confirm the absence of secondary phases in the samples, and to distinguish between stannite, wurtzite, wurzstannite and kesterite structures. Additionally, the analysis of the high resolution Raman spectra obtained in samples with different [Ge]/([Ge]+[Sn]) ratios allows describing a bimodal behavior of the dominant A modes. The understanding of the incorporation of Ge into the Cu2ZnSnS4 lattice is fundamental in order to develop efficient bandgap engineering of these compounds towards the fabrication of kesterite based solar cells with enhanced performanceElsevier B.V.2018201820152018info:eu-repo/semantics/articleinfo:eu-repo/semantics/acceptedVersion7 p.application/pdfhttps://hdl.handle.net/2445/124956Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)reponame:Recercat. Dipósit de la Recerca de Catalunyainstname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)InglésVersió postprint del document publicat a: https://doi.org/10.1016/j.solmat.2015.12.021Solar Energy Materials and Solar Cells, 2015, vol. 158, num. Part 2, p. 147-153https://doi.org/10.1016/j.solmat.2015.12.021info:eu-repo/grantAgreement/EC/FP7/269167info:eu-repo/grantAgreement/EC/FP7/316488cc-by-nc-nd (c) Elsevier B.V., 2015http://creativecommons.org/licenses/by-nc-nd/3.0/esinfo:eu-repo/semantics/openAccessoai:recercat.cat:2445/1249562026-05-29T05:05:01Z
dc.title.none.fl_str_mv Wide band-gap tuning Cu2ZnSn1-xGexS4 single crystals: optical and vibrational properties
title Wide band-gap tuning Cu2ZnSn1-xGexS4 single crystals: optical and vibrational properties
spellingShingle Wide band-gap tuning Cu2ZnSn1-xGexS4 single crystals: optical and vibrational properties
Garcia Llamas, Elena
Propietats òptiques
Espectroscòpia Raman
Cèl·lules solars
El·lipsometria
Optical properties
Raman spectroscopy
Solar cells
Ellipsometry
title_short Wide band-gap tuning Cu2ZnSn1-xGexS4 single crystals: optical and vibrational properties
title_full Wide band-gap tuning Cu2ZnSn1-xGexS4 single crystals: optical and vibrational properties
title_fullStr Wide band-gap tuning Cu2ZnSn1-xGexS4 single crystals: optical and vibrational properties
title_full_unstemmed Wide band-gap tuning Cu2ZnSn1-xGexS4 single crystals: optical and vibrational properties
title_sort Wide band-gap tuning Cu2ZnSn1-xGexS4 single crystals: optical and vibrational properties
dc.creator.none.fl_str_mv Garcia Llamas, Elena
Merino, José Manuel
Serna, Rosalía
Fontané Sánchez, Xavier
Victorov, Ivan A.
Pérez Rodríguez, Alejandro
León, Máximo
Bodnar, Ivan V.
Izquierdo Roca, Victor
Caballero, Raquel
author Garcia Llamas, Elena
author_facet Garcia Llamas, Elena
Merino, José Manuel
Serna, Rosalía
Fontané Sánchez, Xavier
Victorov, Ivan A.
Pérez Rodríguez, Alejandro
León, Máximo
Bodnar, Ivan V.
Izquierdo Roca, Victor
Caballero, Raquel
author_role author
author2 Merino, José Manuel
Serna, Rosalía
Fontané Sánchez, Xavier
Victorov, Ivan A.
Pérez Rodríguez, Alejandro
León, Máximo
Bodnar, Ivan V.
Izquierdo Roca, Victor
Caballero, Raquel
author2_role author
author
author
author
author
author
author
author
author
dc.subject.none.fl_str_mv Propietats òptiques
Espectroscòpia Raman
Cèl·lules solars
El·lipsometria
Optical properties
Raman spectroscopy
Solar cells
Ellipsometry
topic Propietats òptiques
Espectroscòpia Raman
Cèl·lules solars
El·lipsometria
Optical properties
Raman spectroscopy
Solar cells
Ellipsometry
description The linear optical properties of Cu2ZnSn1-xGexS4 high quality single crystals with a wide range of Ge contents (x = 0.1, 0.3, 0.5, 0.7, 0.9 and 1) have been investigated in the ultraviolet and near infrared range using spectroscopic ellipsometry measurements. From the analysis of the complex dielectric function spectra it has been found that the bandgap E0 increases continuously from 1.49 eV to 2.25 eV with the Ge content. Furthermore, the evolution of the interband transitions E1A and E1B has been also determined. Raman scattering using three different excitation wavelengths and its analysis have been performed to confirm the absence of secondary phases in the samples, and to distinguish between stannite, wurtzite, wurzstannite and kesterite structures. Additionally, the analysis of the high resolution Raman spectra obtained in samples with different [Ge]/([Ge]+[Sn]) ratios allows describing a bimodal behavior of the dominant A modes. The understanding of the incorporation of Ge into the Cu2ZnSnS4 lattice is fundamental in order to develop efficient bandgap engineering of these compounds towards the fabrication of kesterite based solar cells with enhanced performance
publishDate 2015
dc.date.none.fl_str_mv 2015
2018
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/acceptedVersion
format article
status_str acceptedVersion
dc.identifier.none.fl_str_mv https://hdl.handle.net/2445/124956
url https://hdl.handle.net/2445/124956
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv Versió postprint del document publicat a: https://doi.org/10.1016/j.solmat.2015.12.021
Solar Energy Materials and Solar Cells, 2015, vol. 158, num. Part 2, p. 147-153
https://doi.org/10.1016/j.solmat.2015.12.021
info:eu-repo/grantAgreement/EC/FP7/269167
info:eu-repo/grantAgreement/EC/FP7/316488
dc.rights.none.fl_str_mv cc-by-nc-nd (c) Elsevier B.V., 2015
http://creativecommons.org/licenses/by-nc-nd/3.0/es
info:eu-repo/semantics/openAccess
rights_invalid_str_mv cc-by-nc-nd (c) Elsevier B.V., 2015
http://creativecommons.org/licenses/by-nc-nd/3.0/es
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 7 p.
application/pdf
dc.publisher.none.fl_str_mv Elsevier B.V.
publisher.none.fl_str_mv Elsevier B.V.
dc.source.none.fl_str_mv Articles publicats en revistes (Enginyeria Electrònica i Biomèdica)
reponame:Recercat. Dipósit de la Recerca de Catalunya
instname:Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
instname_str Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya)
reponame_str Recercat. Dipósit de la Recerca de Catalunya
collection Recercat. Dipósit de la Recerca de Catalunya
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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