Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/186651
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Growth of ordered molecular layers of PTCDA on Pb/Si(111) surfaces: a scanning tunneling microscopy study |
Autor: | Nicoara, Nicoleta CSIC ORCID; Méndez, Javier CSIC ORCID; Gómez-Rodríguez, J. M. | Palabras clave: | STM Pb/Si(111) PTCDA |
Fecha de publicación: | 2-ago-2016 | Editor: | IOP Publishing | Citación: | Nanotechnology 27: 365706 (2016) | Resumen: | The growth of well-ordered layers of PTCDA (3,4,9,10-perylene-tetracarboxylic-dianhydride) molecules on Pb/Si(111) surfaces has been investigated by scanning tunneling microscopy (STM) under ultra-high vacuum conditions. These Pb/Si(111) substrates, which present several distinct phases with different reconstructions, have allowed the exploration of new passivation schemes for the growth of ordered organic layers on Si(111) surfaces. According to our STM measurements, the higher Pb coverage phases (namely the so-called hexagonal incommensurate and reconstructions) present rather inert surfaces that allow easy diffusion of PTCDA molecules at room temperature and the formation of a well ordered first molecular layer which displays a herringbone reconstruction. For multilayer PTCDA coverage on these Pb/Si(111) phases, the formation of three-dimensional crystallites, with structure similar to that of the bulk PTCDA crystal, has been observed, indicating that a Stranski-Krastanov growth mode is dominant. On lower Pb coverage substrates (presenting the defective and mosaic reconstructions) no long range PTCDA order has been obtained. The systematic variation of the substrate reconstruction has allowed in the present work the relation of the surface reactivity of each reconstruction to the formation of ordered layers of PTCDA on Pb/Si(111) substrates. | Versión del editor: | https://doi.org/10.1088/0957-4484/27/36/365706 | URI: | http://hdl.handle.net/10261/186651 | DOI: | 10.1088/0957-4484/27/36/365706 | Identificadores: | doi: 10.1088/0957-4484/27/36/365706 e-issn: 1361-6528 issn: 0957-4484 |
Aparece en las colecciones: | (ICMM) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
accesoRestringido.pdf | 15,38 kB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
7
checked on 23-abr-2024
WEB OF SCIENCETM
Citations
7
checked on 23-feb-2024
Page view(s)
165
checked on 23-abr-2024
Download(s)
26
checked on 23-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.