Study of the oxygen vacancies changes in SnO2 polycrystalline thick films using impedance and photoemission spectroscopies
- Autores
- Schipani, Federico; Ponce, Miguel Adolfo; Joanni, Ednan; Williams, Federico Jose; Aldao, Celso Manuel
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Changes in the concentration of oxygen vacancies within the grains of polycrystalline SnO2, due to different atmosphere exposures, were detected using impedance and photoemission spectroscopies. From measured capacitance values, variations of the potential barrier widths could be determined. It is shown that under the presence of an oxygen rich atmosphere, at relatively low temperature, the width of intergranular potential barriers increase to the point that grains become completely depleted of carriers. With subsequent exposure to vacuum, capacitance adopts a higher value, indicative of intergranular barriers and quasi-neutral regions at the center of the grains. X-ray and ultraviolet photoemission spectroscopy measurements showed that SnO2 samples treated in oxidizing or reducing environments have similar barrier heights and different work functions. Results are especially relevant in the study of mechanisms responsible for metal oxide gas sensing
Fil: Schipani, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Ponce, Miguel Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina
Fil: Joanni, Ednan. CTI Renato Archer. Sao Paulo; Brasil
Fil: Williams, Federico Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina
Fil: Aldao, Celso Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina - Materia
-
SENSORS
OXYGEN VACANCIE DIFFUSION
CAPACITANCE
XPS - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/5178
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Study of the oxygen vacancies changes in SnO2 polycrystalline thick films using impedance and photoemission spectroscopiesSchipani, FedericoPonce, Miguel AdolfoJoanni, EdnanWilliams, Federico JoseAldao, Celso ManuelSENSORSOXYGEN VACANCIE DIFFUSIONCAPACITANCEXPShttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1Changes in the concentration of oxygen vacancies within the grains of polycrystalline SnO2, due to different atmosphere exposures, were detected using impedance and photoemission spectroscopies. From measured capacitance values, variations of the potential barrier widths could be determined. It is shown that under the presence of an oxygen rich atmosphere, at relatively low temperature, the width of intergranular potential barriers increase to the point that grains become completely depleted of carriers. With subsequent exposure to vacuum, capacitance adopts a higher value, indicative of intergranular barriers and quasi-neutral regions at the center of the grains. X-ray and ultraviolet photoemission spectroscopy measurements showed that SnO2 samples treated in oxidizing or reducing environments have similar barrier heights and different work functions. Results are especially relevant in the study of mechanisms responsible for metal oxide gas sensingFil: Schipani, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Ponce, Miguel Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaFil: Joanni, Ednan. CTI Renato Archer. Sao Paulo; BrasilFil: Williams, Federico Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía; ArgentinaFil: Aldao, Celso Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; ArgentinaAmerican Institute Of Physics2014-11-18info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/5178Schipani, Federico; Ponce, Miguel Adolfo; Joanni, Ednan; Williams, Federico Jose; Aldao, Celso Manuel; Study of the oxygen vacancies changes in SnO2 polycrystalline thick films using impedance and photoemission spectroscopies; American Institute Of Physics; Journal Of Applied Physics; 116; 19; 18-11-2014; 194502-1945020021-8979enginfo:eu-repo/semantics/altIdentifier/url/http://scitation.aip.org/content/aip/journal/jap/116/19/10.1063/1.4902150info:eu-repo/semantics/altIdentifier/doi/info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4902150info:eu-repo/semantics/altIdentifier/issn/0021-8979info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:57:39Zoai:ri.conicet.gov.ar:11336/5178instacron: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:34982025-09-29 09:57:39.584CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
dc.title.none.fl_str_mv |
Study of the oxygen vacancies changes in SnO2 polycrystalline thick films using impedance and photoemission spectroscopies |
title |
Study of the oxygen vacancies changes in SnO2 polycrystalline thick films using impedance and photoemission spectroscopies |
spellingShingle |
Study of the oxygen vacancies changes in SnO2 polycrystalline thick films using impedance and photoemission spectroscopies Schipani, Federico SENSORS OXYGEN VACANCIE DIFFUSION CAPACITANCE XPS |
title_short |
Study of the oxygen vacancies changes in SnO2 polycrystalline thick films using impedance and photoemission spectroscopies |
title_full |
Study of the oxygen vacancies changes in SnO2 polycrystalline thick films using impedance and photoemission spectroscopies |
title_fullStr |
Study of the oxygen vacancies changes in SnO2 polycrystalline thick films using impedance and photoemission spectroscopies |
title_full_unstemmed |
Study of the oxygen vacancies changes in SnO2 polycrystalline thick films using impedance and photoemission spectroscopies |
title_sort |
Study of the oxygen vacancies changes in SnO2 polycrystalline thick films using impedance and photoemission spectroscopies |
dc.creator.none.fl_str_mv |
Schipani, Federico Ponce, Miguel Adolfo Joanni, Ednan Williams, Federico Jose Aldao, Celso Manuel |
author |
Schipani, Federico |
author_facet |
Schipani, Federico Ponce, Miguel Adolfo Joanni, Ednan Williams, Federico Jose Aldao, Celso Manuel |
author_role |
author |
author2 |
Ponce, Miguel Adolfo Joanni, Ednan Williams, Federico Jose Aldao, Celso Manuel |
author2_role |
author author author author |
dc.subject.none.fl_str_mv |
SENSORS OXYGEN VACANCIE DIFFUSION CAPACITANCE XPS |
topic |
SENSORS OXYGEN VACANCIE DIFFUSION CAPACITANCE XPS |
purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
dc.description.none.fl_txt_mv |
Changes in the concentration of oxygen vacancies within the grains of polycrystalline SnO2, due to different atmosphere exposures, were detected using impedance and photoemission spectroscopies. From measured capacitance values, variations of the potential barrier widths could be determined. It is shown that under the presence of an oxygen rich atmosphere, at relatively low temperature, the width of intergranular potential barriers increase to the point that grains become completely depleted of carriers. With subsequent exposure to vacuum, capacitance adopts a higher value, indicative of intergranular barriers and quasi-neutral regions at the center of the grains. X-ray and ultraviolet photoemission spectroscopy measurements showed that SnO2 samples treated in oxidizing or reducing environments have similar barrier heights and different work functions. Results are especially relevant in the study of mechanisms responsible for metal oxide gas sensing Fil: Schipani, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina Fil: Ponce, Miguel Adolfo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina Fil: Joanni, Ednan. CTI Renato Archer. Sao Paulo; Brasil Fil: Williams, Federico Jose. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Química, Física de los Materiales, Medioambiente y Energía; Argentina Fil: Aldao, Celso Manuel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Mar del Plata. Instituto de Investigación En Ciencia y Tecnología de Materiales (i); Argentina. Universidad Nacional de Mar del Plata. Facultad de Ingeniería; Argentina |
description |
Changes in the concentration of oxygen vacancies within the grains of polycrystalline SnO2, due to different atmosphere exposures, were detected using impedance and photoemission spectroscopies. From measured capacitance values, variations of the potential barrier widths could be determined. It is shown that under the presence of an oxygen rich atmosphere, at relatively low temperature, the width of intergranular potential barriers increase to the point that grains become completely depleted of carriers. With subsequent exposure to vacuum, capacitance adopts a higher value, indicative of intergranular barriers and quasi-neutral regions at the center of the grains. X-ray and ultraviolet photoemission spectroscopy measurements showed that SnO2 samples treated in oxidizing or reducing environments have similar barrier heights and different work functions. Results are especially relevant in the study of mechanisms responsible for metal oxide gas sensing |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-11-18 |
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/11336/5178 Schipani, Federico; Ponce, Miguel Adolfo; Joanni, Ednan; Williams, Federico Jose; Aldao, Celso Manuel; Study of the oxygen vacancies changes in SnO2 polycrystalline thick films using impedance and photoemission spectroscopies; American Institute Of Physics; Journal Of Applied Physics; 116; 19; 18-11-2014; 194502-194502 0021-8979 |
url |
http://hdl.handle.net/11336/5178 |
identifier_str_mv |
Schipani, Federico; Ponce, Miguel Adolfo; Joanni, Ednan; Williams, Federico Jose; Aldao, Celso Manuel; Study of the oxygen vacancies changes in SnO2 polycrystalline thick films using impedance and photoemission spectroscopies; American Institute Of Physics; Journal Of Applied Physics; 116; 19; 18-11-2014; 194502-194502 0021-8979 |
dc.language.none.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
info:eu-repo/semantics/altIdentifier/url/http://scitation.aip.org/content/aip/journal/jap/116/19/10.1063/1.4902150 info:eu-repo/semantics/altIdentifier/doi/ info:eu-repo/semantics/altIdentifier/doi/10.1063/1.4902150 info:eu-repo/semantics/altIdentifier/issn/0021-8979 |
dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
eu_rights_str_mv |
openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ |
dc.format.none.fl_str_mv |
application/pdf application/pdf application/pdf application/pdf |
dc.publisher.none.fl_str_mv |
American Institute Of Physics |
publisher.none.fl_str_mv |
American Institute Of Physics |
dc.source.none.fl_str_mv |
reponame:CONICET Digital (CONICET) instname:Consejo Nacional de Investigaciones Científicas y Técnicas |
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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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13.070432 |