Structural configurations of thin dried polyaniline films on gold(111) from scanning tunneling microscopy

Autores
Vela, María Elena; Zubimendi, J. L.; Ocón, P.; Herrasti, P.; Salvarezza, Roberto Carlos; Vázquez, Luís; Arvia, Alejandro Jorge
Año de publicación
1996
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The early stages of growth of polyaniline films electrodeposited on Au were studied by conventional electrochemical techniques, X-ray diffraction and ex situ scanning tunneling microscopy (STM). From high resolution STM imaging it appears that the first step of polyaniline formation involves the adsorption of aniline monomers on Au(111) terraces leading to domains with hexagonal arrays involving a phenyl-phenyl distance in the range 0.70 nm ⩽ d ⩽ 1.0 nm. The second step corresponds to the initiation of the polymer growth yielding typically 10 × 10 nm2 crystalline domains consisting of either 0.45 × 0.6 nm2 rectangular arrays or 0.75 × 0.45 nm2 arrays forming 120 ° angles. The crystalline domains coexist with highly disordered polymer domains. At advanced stages of growth, the formation of polymer fibers 2 nm in average width takes place leading to a full substrate coverage by a polymer deposit with an irregular surface.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
Materia
Ciencias Exactas
Química
conducting polymers
thin polyaniline films
STM imaging
early stage structures
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/127556
Acceder
id SEDICI_deb0171fb84b2fde6f554044d0fbef81
oai_identifier_str oai:sedici.unlp.edu.ar:10915/127556
network_acronym_str SEDICI
repository_id_str 1329
network_name_str SEDICI (UNLP)
spelling Structural configurations of thin dried polyaniline films on gold(111) from scanning tunneling microscopyVela, María ElenaZubimendi, J. L.Ocón, P.Herrasti, P.Salvarezza, Roberto CarlosVázquez, LuísArvia, Alejandro JorgeCiencias ExactasQuímicaconducting polymersthin polyaniline filmsSTM imagingearly stage structuresThe early stages of growth of polyaniline films electrodeposited on Au were studied by conventional electrochemical techniques, X-ray diffraction and ex situ scanning tunneling microscopy (STM). From high resolution STM imaging it appears that the first step of polyaniline formation involves the adsorption of aniline monomers on Au(111) terraces leading to domains with hexagonal arrays involving a phenyl-phenyl distance in the range 0.70 nm ⩽ d ⩽ 1.0 nm. The second step corresponds to the initiation of the polymer growth yielding typically 10 × 10 nm<sub>2</sub> crystalline domains consisting of either 0.45 × 0.6 nm<sub>2</sub> rectangular arrays or 0.75 × 0.45 nm<sub>2</sub> arrays forming 120 ° angles. The crystalline domains coexist with highly disordered polymer domains. At advanced stages of growth, the formation of polymer fibers 2 nm in average width takes place leading to a full substrate coverage by a polymer deposit with an irregular surface.Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas1996info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1891-1903http://sedici.unlp.edu.ar/handle/10915/127556enginfo:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/0013468695005102info:eu-repo/semantics/altIdentifier/issn/0013-4686info:eu-repo/semantics/altIdentifier/doi/10.1016/0013-4686(95)00510-2info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/4.0/Creative Commons Attribution 4.0 International (CC BY 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:22:44Zoai:sedici.unlp.edu.ar:10915/127556Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:22:44.312SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Structural configurations of thin dried polyaniline films on gold(111) from scanning tunneling microscopy
title Structural configurations of thin dried polyaniline films on gold(111) from scanning tunneling microscopy
spellingShingle Structural configurations of thin dried polyaniline films on gold(111) from scanning tunneling microscopy
Vela, María Elena
Ciencias Exactas
Química
conducting polymers
thin polyaniline films
STM imaging
early stage structures
title_short Structural configurations of thin dried polyaniline films on gold(111) from scanning tunneling microscopy
title_full Structural configurations of thin dried polyaniline films on gold(111) from scanning tunneling microscopy
title_fullStr Structural configurations of thin dried polyaniline films on gold(111) from scanning tunneling microscopy
title_full_unstemmed Structural configurations of thin dried polyaniline films on gold(111) from scanning tunneling microscopy
title_sort Structural configurations of thin dried polyaniline films on gold(111) from scanning tunneling microscopy
dc.creator.none.fl_str_mv Vela, María Elena
Zubimendi, J. L.
Ocón, P.
Herrasti, P.
Salvarezza, Roberto Carlos
Vázquez, Luís
Arvia, Alejandro Jorge
author Vela, María Elena
author_facet Vela, María Elena
Zubimendi, J. L.
Ocón, P.
Herrasti, P.
Salvarezza, Roberto Carlos
Vázquez, Luís
Arvia, Alejandro Jorge
author_role author
author2 Zubimendi, J. L.
Ocón, P.
Herrasti, P.
Salvarezza, Roberto Carlos
Vázquez, Luís
Arvia, Alejandro Jorge
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv Ciencias Exactas
Química
conducting polymers
thin polyaniline films
STM imaging
early stage structures
topic Ciencias Exactas
Química
conducting polymers
thin polyaniline films
STM imaging
early stage structures
dc.description.none.fl_txt_mv The early stages of growth of polyaniline films electrodeposited on Au were studied by conventional electrochemical techniques, X-ray diffraction and ex situ scanning tunneling microscopy (STM). From high resolution STM imaging it appears that the first step of polyaniline formation involves the adsorption of aniline monomers on Au(111) terraces leading to domains with hexagonal arrays involving a phenyl-phenyl distance in the range 0.70 nm ⩽ d ⩽ 1.0 nm. The second step corresponds to the initiation of the polymer growth yielding typically 10 × 10 nm<sub>2</sub> crystalline domains consisting of either 0.45 × 0.6 nm<sub>2</sub> rectangular arrays or 0.75 × 0.45 nm<sub>2</sub> arrays forming 120 ° angles. The crystalline domains coexist with highly disordered polymer domains. At advanced stages of growth, the formation of polymer fibers 2 nm in average width takes place leading to a full substrate coverage by a polymer deposit with an irregular surface.
Instituto de Investigaciones Fisicoquímicas Teóricas y Aplicadas
description The early stages of growth of polyaniline films electrodeposited on Au were studied by conventional electrochemical techniques, X-ray diffraction and ex situ scanning tunneling microscopy (STM). From high resolution STM imaging it appears that the first step of polyaniline formation involves the adsorption of aniline monomers on Au(111) terraces leading to domains with hexagonal arrays involving a phenyl-phenyl distance in the range 0.70 nm ⩽ d ⩽ 1.0 nm. The second step corresponds to the initiation of the polymer growth yielding typically 10 × 10 nm<sub>2</sub> crystalline domains consisting of either 0.45 × 0.6 nm<sub>2</sub> rectangular arrays or 0.75 × 0.45 nm<sub>2</sub> arrays forming 120 ° angles. The crystalline domains coexist with highly disordered polymer domains. At advanced stages of growth, the formation of polymer fibers 2 nm in average width takes place leading to a full substrate coverage by a polymer deposit with an irregular surface.
publishDate 1996
dc.date.none.fl_str_mv 1996
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
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://sedici.unlp.edu.ar/handle/10915/127556
url http://sedici.unlp.edu.ar/handle/10915/127556
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/abs/pii/0013468695005102
info:eu-repo/semantics/altIdentifier/issn/0013-4686
info:eu-repo/semantics/altIdentifier/doi/10.1016/0013-4686(95)00510-2
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/4.0/
Creative Commons Attribution 4.0 International (CC BY 4.0)
dc.format.none.fl_str_mv application/pdf
1891-1903
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
institution UNLP
repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.22299

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