Artículo
Adsorption and thermal stability of 1,4 benzenedimethanethiol on InP(110)
Salazar Alarcón, Leonardo
; Cristina, Lucila Josefina
; Jia, Juanjuan; Chen, Lin; Giglia, Angelo; Pasquali, Luca; Sánchez, Esteban Alejandro
; Esaulov, Vladimir A.; Grizzi, Oscar
Fecha de publicación:
10/2017
Editorial:
Elsevier Science
Revista:
Surface Science
ISSN:
0039-6028
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
Self-assembly of dithiol molecules is of interest because these can be used as linkers between metallic or semiconductor entities and thus employed in molecular electronics and plasmonic applications, or for building complex heterostructures. Here we focus on dithiol self-assembly by evaporation in vacuum, a method that could circumvent the dithiol oxidation that can occur in solution. We present a high resolution X-ray photoelectron spectroscopy (XPS) and an ion scattering study of adsorption and desorption of 1,4-benzenedimethanethiol on InP(110) as a function of exposure and sample temperature. Results for InP are compared to those on Au(111) and found to differ due to formation of a thick BDMT layer at room temperature, resulting from extra molecules sticking on top of the self-assembled monolayer. This may play an adverse effect in some afore-mentioned applications as in molecular electronics. We furthermore study the evolution of the dithiol film with sample temperature and the elements remaining at the surface after annealing and delineate initial coverage dependent effects.
Palabras clave:
BENZENEDIMETHANETHIOL FILMS
,
INP(110)
,
SELF-ASSEMBLY
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Articulos(IFIS - LITORAL)
Articulos de INST.DE FISICA DEL LITORAL
Articulos de INST.DE FISICA DEL LITORAL
Citación
Salazar Alarcón, Leonardo; Cristina, Lucila Josefina; Jia, Juanjuan; Chen, Lin; Giglia, Angelo; et al.; Adsorption and thermal stability of 1,4 benzenedimethanethiol on InP(110); Elsevier Science; Surface Science; 664; 10-2017; 101-109
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