Formation Kinetics of Mixed Self-Assembled Monolayers of Alkanethiols on GaAs(100)
| Autor: | Jan J. Dubowski, Céline Elie-Caille, Walid M. Hassen, Thérèse Leblois, Khalid Moumanis, Vivien Lacour |
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| Přispěvatelé: | Franche-Comté Électronique Mécanique, Thermique et Optique - Sciences et Technologies (UMR 6174) (FEMTO-ST), Université de Technologie de Belfort-Montbeliard (UTBM)-Ecole Nationale Supérieure de Mécanique et des Microtechniques (ENSMM)-Université de Franche-Comté (UFC), Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Centre National de la Recherche Scientifique (CNRS), Institut Interdisciplinaire d'Innovation Technologique [Sherbrooke] (3IT), Université de Sherbrooke (UdeS), Laboratoire Nanotechnologies Nanosystèmes (LN2 ), Université Grenoble Alpes [2016-2019] (UGA [2016-2019])-École Centrale de Lyon (ECL), Université de Lyon-Université de Lyon-Institut National des Sciences Appliquées de Lyon (INSA Lyon), Institut National des Sciences Appliquées (INSA)-Université de Lyon-Institut National des Sciences Appliquées (INSA)-Université de Sherbrooke (UdeS)-École supérieure de Chimie Physique Electronique de Lyon (CPE)-Centre National de la Recherche Scientifique (CNRS) |
| Rok vydání: | 2017 |
| Předmět: |
Kinetics
Infrared spectroscopy 02 engineering and technology 010402 general chemistry 01 natural sciences [SPI.MAT]Engineering Sciences [physics]/Materials [SPI]Engineering Sciences [physics] Monolayer Electrochemistry Organic chemistry General Materials Science [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics Spectroscopy ComputingMilieux_MISCELLANEOUS [SPI.ACOU]Engineering Sciences [physics]/Acoustics [physics.class-ph] chemistry.chemical_classification Chemistry Self-assembled monolayer Surfaces and Interfaces 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Solvent Chemical engineering Thiol 0210 nano-technology Biosensor |
| Zdroj: | HAL Langmuir Langmuir, American Chemical Society, 2019, 35 (13), pp.4415-4427. ⟨10.1021/acs.langmuir.7b00929⟩ Langmuir, American Chemical Society, 2017, ⟨10.1021/acs.langmuir.7b00929⟩ |
| ISSN: | 1520-5827 0743-7463 |
| DOI: | 10.1021/acs.langmuir.7b00929 |
| Popis: | International audience; We report on the formation kinetics of mixed self-assembled monolayers (SAMs) comprising 16-mercaptohexadecanoic acid (MHDA) and 11-mercapto-1-undecanol (MUDO) thiols on GaAs(100) substrates. These compounds were selected for their potential in constructing highly selective and efficient architectures for biosensing applications. The molecular composition and quality of one-compound and mixed SAMs were determined by the Fourier transform infrared absorption spectroscopy measurements. The formation of enhanced-quality mixed SAMs was investigated as a function of the molecular composition of the thiol mixture and the proportion of ethanol/water solvent used during their arrangement. Furthermore, the formation of mixed SAMs has been carried out by successive immersion of MHDA SAMs in MUDO thiol solutions and MUDO SAMs in MHDA thiol solution through the process involving thiol-thiol substitution. Our results, in addition to confirming that water-ethanol-based solvents improve the packing density of single thiol monolayers, demonstrate the attractive role of water-ethanol solvents in forming superior quality mixed SAMs. |
| Databáze: | OpenAIRE |
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