Alkanethiol self-assembled monolayer on copper polycrystalline thin films: influence on resistivity
Author
dc.contributor.author
Flores Carrasco, Marcos
Author
dc.contributor.author
Donoso, Sebastián
Author
dc.contributor.author
Ortiz, Magdalena
Author
dc.contributor.author
Acosta, Gabriela
Author
dc.contributor.author
Fernández, Henry
Admission date
dc.date.accessioned
2018-08-01T16:11:21Z
Available date
dc.date.available
2018-08-01T16:11:21Z
Publication date
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2018
Cita de ítem
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Materials Chemistry and Physics, 208 (2018): 97-102
es_ES
Identifier
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10.1016/j.matchemphys.2018.01.034
Identifier
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https://repositorio.uchile.cl/handle/2250/150520
Abstract
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Thin polycrystalline copper films of low surface roughness and low electrical resistivity were deposited by physical vapor deposition onto mica at room temperature and in thicknesses ranging from 10 to 80 nm. The crystalline orientation of the films was mainly in the [111] direction, with a surface roughness of under 8.0 nm for thicker films. The copper films were coated with dodecanethiol (DDT), CH3(CH2)(10)HS by direct immersion into a millimolar solution of the molecules in ethanol for 20 h. Self-Assembled monolayers (SAMs) formation was observed based on XPS studies. The results showed that DDT-SAMs were an effective barrier against the oxidation of the metallic surface, and the resistivity increased between 15% and 70% over the bulk value, depending on the film thickness.