Microscopy and Surface Analysis 2

Surface contamination:– The obvious contamination/alteration of surfaces that can be theresult of less-than careful sample preparation– Solid surfaces can adsorb gases: At 10-6 torr, a complete monolayer of a gas (e.g. CO) takes just 3seconds to form. At 10-8 torr, monolayer formation takes 1 hour.– Most studies are conducted under vaccuum – although there arenewer methods that don’t require this.
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Microscopy and Surface Analysis 2