Density of states evaluations from oscillating/moving grating techniques

Autores
Ventosinos, Federico; Longeaud, C.; Schmidt, Javier Alejandro
Año de publicación
2012
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
In this paper we first present a comparison between two grating techniques, the oscillating photocarrier grating (OPG) and the moving grating technique (MGT). The common origin of both techniques suggests that they should give the same experimental data. In this work we present measurements performed with both techniques and show their equivalence. Regarding the fact that the OPG method uses a lock-in amplifier to measure the photocurrent, while the MGT uses an electrometer due to its dc nature, we show that these techniques can be used in a complementary way, using the benefits that each one of them offers. Moreover, we present measurements of the density of states (DOS) of an amorphous silicon sample, which were made using a range of temperatures that are only achievable using both techniques. We also present a brief summary of the theory supporting these techniques, and we outline future research to improve the DOS estimation.
Fil: Ventosinos, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Longeaud, C.. Ecole Superieure D; Francia
Fil: Schmidt, Javier Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Materia
Amorphous Silicon
Grating Techniques
Photoconductivity
Semiconductors
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/10908
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Density of states evaluations from oscillating/moving grating techniquesVentosinos, FedericoLongeaud, C.Schmidt, Javier AlejandroAmorphous SiliconGrating TechniquesPhotoconductivitySemiconductorshttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1In this paper we first present a comparison between two grating techniques, the oscillating photocarrier grating (OPG) and the moving grating technique (MGT). The common origin of both techniques suggests that they should give the same experimental data. In this work we present measurements performed with both techniques and show their equivalence. Regarding the fact that the OPG method uses a lock-in amplifier to measure the photocurrent, while the MGT uses an electrometer due to its dc nature, we show that these techniques can be used in a complementary way, using the benefits that each one of them offers. Moreover, we present measurements of the density of states (DOS) of an amorphous silicon sample, which were made using a range of temperatures that are only achievable using both techniques. We also present a brief summary of the theory supporting these techniques, and we outline future research to improve the DOS estimation.Fil: Ventosinos, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; ArgentinaFil: Longeaud, C.. Ecole Superieure D; FranciaFil: Schmidt, Javier Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; ArgentinaElsevier Science2012-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/10908Ventosinos, Federico; Longeaud, C.; Schmidt, Javier Alejandro; Density of states evaluations from oscillating/moving grating techniques; Elsevier Science; Journal Of Non-crystalline Solids; 358; 17; 1-2012; 2031–20340022-3093enginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnoncrysol.2011.12.046info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0022309311007563info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:51:00Zoai:ri.conicet.gov.ar:11336/10908instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:51:00.511CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Density of states evaluations from oscillating/moving grating techniques
title Density of states evaluations from oscillating/moving grating techniques
spellingShingle Density of states evaluations from oscillating/moving grating techniques
Ventosinos, Federico
Amorphous Silicon
Grating Techniques
Photoconductivity
Semiconductors
title_short Density of states evaluations from oscillating/moving grating techniques
title_full Density of states evaluations from oscillating/moving grating techniques
title_fullStr Density of states evaluations from oscillating/moving grating techniques
title_full_unstemmed Density of states evaluations from oscillating/moving grating techniques
title_sort Density of states evaluations from oscillating/moving grating techniques
dc.creator.none.fl_str_mv Ventosinos, Federico
Longeaud, C.
Schmidt, Javier Alejandro
author Ventosinos, Federico
author_facet Ventosinos, Federico
Longeaud, C.
Schmidt, Javier Alejandro
author_role author
author2 Longeaud, C.
Schmidt, Javier Alejandro
author2_role author
author
dc.subject.none.fl_str_mv Amorphous Silicon
Grating Techniques
Photoconductivity
Semiconductors
topic Amorphous Silicon
Grating Techniques
Photoconductivity
Semiconductors
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.3
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv In this paper we first present a comparison between two grating techniques, the oscillating photocarrier grating (OPG) and the moving grating technique (MGT). The common origin of both techniques suggests that they should give the same experimental data. In this work we present measurements performed with both techniques and show their equivalence. Regarding the fact that the OPG method uses a lock-in amplifier to measure the photocurrent, while the MGT uses an electrometer due to its dc nature, we show that these techniques can be used in a complementary way, using the benefits that each one of them offers. Moreover, we present measurements of the density of states (DOS) of an amorphous silicon sample, which were made using a range of temperatures that are only achievable using both techniques. We also present a brief summary of the theory supporting these techniques, and we outline future research to improve the DOS estimation.
Fil: Ventosinos, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
Fil: Longeaud, C.. Ecole Superieure D; Francia
Fil: Schmidt, Javier Alejandro. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Desarrollo Tecnológico Para la Industria Química (i); Argentina. Universidad Nacional del Litoral. Facultad de Ingeniería Química; Argentina
description In this paper we first present a comparison between two grating techniques, the oscillating photocarrier grating (OPG) and the moving grating technique (MGT). The common origin of both techniques suggests that they should give the same experimental data. In this work we present measurements performed with both techniques and show their equivalence. Regarding the fact that the OPG method uses a lock-in amplifier to measure the photocurrent, while the MGT uses an electrometer due to its dc nature, we show that these techniques can be used in a complementary way, using the benefits that each one of them offers. Moreover, we present measurements of the density of states (DOS) of an amorphous silicon sample, which were made using a range of temperatures that are only achievable using both techniques. We also present a brief summary of the theory supporting these techniques, and we outline future research to improve the DOS estimation.
publishDate 2012
dc.date.none.fl_str_mv 2012-01
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/10908
Ventosinos, Federico; Longeaud, C.; Schmidt, Javier Alejandro; Density of states evaluations from oscillating/moving grating techniques; Elsevier Science; Journal Of Non-crystalline Solids; 358; 17; 1-2012; 2031–2034
0022-3093
url http://hdl.handle.net/11336/10908
identifier_str_mv Ventosinos, Federico; Longeaud, C.; Schmidt, Javier Alejandro; Density of states evaluations from oscillating/moving grating techniques; Elsevier Science; Journal Of Non-crystalline Solids; 358; 17; 1-2012; 2031–2034
0022-3093
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jnoncrysol.2011.12.046
info:eu-repo/semantics/altIdentifier/url/http://www.sciencedirect.com/science/article/pii/S0022309311007563
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 12.982451

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