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dc.contributor.author
Moreno López, Juan Carlos
dc.contributor.author
Grizzi, Oscar
dc.contributor.author
Sánchez, Esteban Alejandro
dc.date.available
2019-03-25T20:01:52Z
dc.date.issued
2016-09
dc.identifier.citation
Moreno López, Juan Carlos; Grizzi, Oscar; Sánchez, Esteban Alejandro; Thermal Stability of N,N′-Bis(1-ethylpropyl)perylene-3,4,9,10-tetracarboxdiimide Films on Cu(100); American Chemical Society; Journal of Physical Chemistry C; 120; 35; 9-2016; 19630-19635
dc.identifier.issn
1932-7447
dc.identifier.uri
http://hdl.handle.net/11336/72456
dc.description.abstract
The thermal stability of N,N′-bis(1-ethylpropyl)-perylene-3,4,9,10-tetracarboxdiimide (EP-PTCDI) thin films deposited on Cu(100) has been characterized by using scanning tunneling microscopy (STM), X-ray photoelectron spectroscopy (XPS), and low-energy electron diffraction (LEED). For one monolayer absorption, the molecules arrange with a (34-26) symmetry. After annealing the sample at 500 K, XPS measurements show that the molecules dissociate leaving the PTCDI core of the molecule on the surface. According to that, STM measurements show new images of molecules with the size of the PTCDI core, and without the characteristic ethylpropyl end groups. These remaining molecules cover most of the surface with ordered islands, presenting a different molecular arrangement. With the help of the experimental and simulated LEED patterns, the molecular arrangement can be described by a (-563.53) superstructure and its four rotational equivalents. However, complementary measurements of STM images at different tip-to-sample bias voltages showed variations of the local density of states for molecules absorbed at different absorption sites, reflecting a (-5676) commensurated arrangement.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Chemical Society
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Ep Ptcdi
dc.subject
Perylene
dc.subject.classification
Física Atómica, Molecular y Química
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Thermal Stability of N,N′-Bis(1-ethylpropyl)perylene-3,4,9,10-tetracarboxdiimide Films on Cu(100)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-03-21T14:18:25Z
dc.journal.volume
120
dc.journal.number
35
dc.journal.pagination
19630-19635
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Moreno López, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Física del Litoral. Universidad Nacional del Litoral. Instituto de Física del Litoral; Argentina
dc.description.fil
Fil: Grizzi, Oscar. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.description.fil
Fil: Sánchez, Esteban Alejandro. Comisión Nacional de Energía Atómica. Gerencia del Área de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
dc.journal.title
Journal of Physical Chemistry C
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://pubs.acs.org/doi/10.1021/acs.jpcc.6b04157
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1021/acs.jpcc.6b04157
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