Adsorption and thermal stability of 1,4 benzenedimethanethiol on InP(110)

Authors
Salazar Alarcón, Leonardo; Cristina, Lucila Josefina; Jia, Juanjuan; Chen, Lin; Giglia, Angelo; Pasquali, Luca; Sánchez, Esteban Alejandro; Esaulov, Vladimir A.; Grizzi, Oscar
Publication Year
2017
Language
English
Format
article
Status
Published version
Description
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.
Fil: Salazar Alarcón, Leonardo. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Cristina, Lucila Josefina. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Jia, Juanjuan. Université Paris Sud; Francia
Fil: Chen, Lin. Lanzhou University; China
Fil: Giglia, Angelo. CNR-IOM; Italia
Fil: Pasquali, Luca. CNR-IOM; Italia. Università di Modena e Reggio Emilia; Italia. University of Johannesburg; Sudáfrica
Fil: Sánchez, Esteban Alejandro. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Esaulov, Vladimir A.. Université Paris Sud; Francia
Fil: Grizzi, Oscar. Comisión Nacional de Energía Atómica. Centro Atómico Bariloche; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Subject
BENZENEDIMETHANETHIOL FILMS
INP(110)
SELF-ASSEMBLY
Otras Ciencias Físicas
Ciencias Físicas
CIENCIAS NATURALES Y EXACTAS
Access level
Restricted access
License
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repository
CONICET Digital (CONICET)
Institution
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identifier
oai:ri.conicet.gov.ar:11336/74310