The electrical and structural properties of gold films and mercury-covered gold films

Electro-deposition of gold nano-structures on gold Quartz Crystal Microbalance (QCM) electrodes for enhanced mercury vapour sensitivity in the presence of interferent gases

“…It is thought that electro-deposition process may have developed greater number of grain boundaries and defects. This assumption could then agree with the proposal of George et al [11] that the rougher film substrates promote diffusion of mercury into the films' grain boundaries. The non-modified sample is simply gold on polished quartz with Ti as the adhesion layer and is a film that is very flat and contains uniform grains and compact grain boundaries.…”

Model validation of a mercury sensor, based on the resistivity variation of a thin gold film

“…Experiments performed by the authors on polycrystalline gold film [3] and data available in literature [13] are in good accordance with the model expectations.…”

“…By replacing Eqs. (8) (13) This equation relates the sensor sensitivity to the geometrical (d, S) and physical (c Au ) features of the thin gold film. Throughout the paper, this expression will refer to a sensor design criteria.…”

Mercury adsorption on gold surfaces employed in the sampling and determination of vaporous mercury: a scanning tunneling microscopy study

“…Recently, George et al [9][10][11][12] have applied x-ray photoelectron spectroscopy, x-ray diffraction, conductivity measurements, and scanning tunneling microscopy (STM) to investigate the transducing mechanism of gold films used in gold film mercury analyzers. They observed mercury migration to grain boundaries in polycrystalline films at submonolayer coverages.…”

“…They observed mercury migration to grain boundaries in polycrystalline films at submonolayer coverages. On epitaxial films, mercury was found to form a network-like structure on the gold film [12]. Most atomic scale studies of adsorption of mercury have been done with a few metals, for which the solubility in mercury is less than I • 10 -s atomic percent [13], e.g.…”