Zhang Jian, Yeromonahos Christelle, Léonard Didier, Géhin Thomas, Botella Claude, Grenet Geneviève, Benamrouche Aziz, Penuelas José, Monfray Stéphane, Chevolot Yann, Cloarec Jean-Pierre
Université de Lyon, Institut des Nanotechnologies de Lyon (INL)-UMR CNRS 5270, Ecole Centrale de Lyon , 36 Avenue Guy de Collongue , 69134 Ecully cedex, France.
Univ Lyon, CNRS, Université Claude Bernard Lyon 1, ENS de Lyon, Institut des Sciences Analytiques, UMR 5280 , 5, rue de la Doua , F-69100 Villeurbanne , France.
Langmuir. 2019 Jul 23;35(29):9554-9563. doi: 10.1021/acs.langmuir.8b04150. Epub 2019 Jul 10.
Titanium tungsten (TiW) films (200 nm thick) were cleaned by oxygen plasma, and the resulting oxidized surfaces were functionalized by 3-aminopropylphosphonic acid (APPA), 3-ethoxydimethylsilylpropylamine (APDMES), or dopamine (DA) to form three different organolayers. The three resulting organolayers were characterized by X-ray photoelectron spectroscopy, time-of-flight secondary ion mass spectrometry, and Fourier transform infrared spectroscopy analyses. The stability of each organolayer was investigated. Our results suggested that the Si-O-Ti or Si-O-W bonds formed by the reactions of APDMES with surface-oxidized TiW were rather labile, whereas the catechol layer was less labile. The APPA layer was the most stable of all tested surface modifications.
