Scanning tunneling monolayers

Giancarlo L C and Flynn G W 1988 Scanning tunneling and atomic force microscopy probes of self-assembled, physisorbed monolayers A/ / . Rev. Phys. Chem. 49 297... 

Smith D P E, Hdrber H, Gerber Ch and Binnig G 1989 Smectic liquid crystal monolayers on graphite observed by scanning tunnelling microscopy Science 245 43... 

Sotobayashi FI, Schilling T and Tesche B 1990 Scanning tunnelling microscopy of polyimide monolayers prepared by the Langmuir-Blodgett technique Langmuir 6 1246... 

The very new techniques of scanning tunnelling microscopy (STM) and atomic force microscopy (AFM) have yet to establish themselves in the field of corrosion science. These techniques are capable of revealing surface structure to atomic resolution, and are totally undamaging to the surface. They can be used in principle in any environment in situ, even under polarization within an electrolyte. Their application to date has been chiefly to clean metal surfaces and surfaces carrying single monolayers of adsorbed material, rendering examination of the adsorption of inhibitors possible. They will indubitably find use in passive film analysis. 

Demir U, Shannon C (1994) A scanning tunneling microscopy study of electrochemicaUy grown cadmium sulfide monolayers on Au(lll). Langmuir 10 2794-2799... 

Ogawa, S., Fan, F.-R.F. and Bard, A. J. (1995) Scanning tunneling microscopy, tunneling spectroscopy, and photoelectrochemistry of a film of Q-CdS particles incorporated in a self-assembled monolayer on a gold surface. J. Phys. Chem., 99, 11182-11189. 

Hosier H, Richter B, Behm RJ. 2004. Catalytic influence of Pt monolayer islands on the hydrogen electrochemistry of Ru(OOOl) studied by ultrahigh vacuum scanning tunneling microscopy and cychc voltammetry. J Phys Chem B 108 14780. 

Unlike electron and scanning tunneling microscopy, the use of fluorescent dyes in monolayers at the air-water interface allows the use of contrast imaging to view the monolayer in situ during compression and expansion of the film. Under ideal circumstances, one may observe the changes in monolayer phase and the formation of specific aggregate domains as the film is compressed. This technique has been used to visualize phase changes in monolayers of chiral phospholipids (McConnell et al, 1984, 1986 Weis and McConnell, 1984 Keller et al., 1986 McConnell and Moy, 1988) and achiral fatty acids (Moore et al., 1986). 

Ohgi T, Sheng H-Y, Dong Z-C, Nejoh H (1999) Observation of Au deposited self-assembled monolayers of octanethiol by scanning tunneling microscopy. Surf Sci 442 277-282... 

Widrig CA, Alves CA, Porter MD (1991) Scanning tunneling microscopy of ethanthiolate and n-octadecanethiolate monolayers spontaneously adsorbed at gold surfaces. J Am Chem Soc 113 2805-2810... 

Structures of SA alkanethiol monolayers generated on gold substrates are better understood than the chemistries involved in their formation. Electron diffraction and FTIR measurements, together with computer simulations, have provided a picture of a SA monolayer in which the axes of the alkyl chains of the surfactants are tilted approximately 30° with respect to the surface normal of the substrate and the sulfur atoms reside in the three-fold hollows of the gold (111) surface (Fig. 25) [68, 207-210, 230, 240]. The use of scanning tunneling micro-... 

Hamers, R. J., Hovis, J. S., Greenlief, . M. and Padowitz, D. F. Scanning tunneling microscopy of organic molecules and monolayers on silicon and germanium (001) surfaces. Japanese Journal of Applied Physics, Part 1 38, 3879-87 (1999). 

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