Abstract
The resistivity change of thin films of gold upon exposure to H 2 S has been employed to develop gas sensors that detect H 2 S. The exact mechanism by which H 2 S alters the conductivity of these films is not known. However, the adsorption and bonding of H 2 S on gold surfaces is clearly a critical step in the overall mechanism. In this study, we have explored the interaction of H 2 S with the clean Au(110) single-crystal surface. A variety of ultrahigh vacuum surface science techniques were used including X-ray photoelectron spectroscopy (XPS), low electron energy diffraction (LEED), temperature-programmed desorption (TPD), and high-resolution electron energy loss spectroscopy (HREELS)
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