Identity and contact details of the publisher
Phasis Sàrl
Campus Biotech Innovation Park
Av. de Sécheron 15,
1202 Geneva (Switzerland)
Web: https://www.phasis.ch
Email: This email address is being protected from spambots. You need JavaScript enabled to view it.
IDE: CHE-111.752.843
Active since July 05 2004.
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Study of Self-Assembled Monolayers
Au111 thin films are used for studies of ultrathin overlayers such as self-assembled monolayers (SAMs) taking advantage of the large flat gold terraces. SAMs are the most elementary form of a nanometer-scale organic thin film material and are prepared by immersing the gold substrates in solutions containing the relevant molecules. The adsorbates organize then spontaneously into crystalline or semicrystalline structures. See for example M. Wanunu et al., Journal of the American Chemical Society (2004), 126(17), 5569-5576.
An example of a scanning tunnelling microscopy study of SAMs of short carboxyl-terminated molecules on Au(111) thin films can be found under the following reference: C. Dubois and F. Stellacci, J. Phys. Chem. C, 112, 7431 (2008).
An example of a study of the reaction of O(3P) atoms with Alkylthiol Self-assembled Monolayers can be found under the following reference: Carla Waring, Paul A. J. Bagot, Minna T. Räisänen, Matthew L. Costen, and Kenneth G. McKendrick, J. Phys. Chem. A, 113, 4320 (2009).
Instrument Calibration
Au(111) thin films are very useful for scanning probe microscopy (SPM) calibration purposes using the gold terraces unit cell steps of 2.36 Å.
Teaching and Presentations
Au(111) thin films are used for scanning probe microscopy (SPM) studies for educational purposes. Gold on mica samples are ideal for letting students learn about SPM. It is indeed relatively easy to get nice atomic force microscopy (AFM) or scanning tunnelling microscopy (STM) images with those substrates. For ideas and informations on educational news and events in nanotechnology, visit the website of Nanoscience.
Our activities are concentrated on the production and distribution of gold-coated substrates and thin films for the physical and life sciences.
Surrounded with excellent know-how and research expertise, PHASIS has also a strong commitment to applied research and device development.
Covering applications from microscopy to chemical sensors, PHASIS offers tailored expertise for high-tech applications using new materials, micro- and nanometric surface modifications, and thin film technology.
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