The fundamentals of stimulated desorption by electronic excitations is reviewed. Specifically this includes electron-and photon-stimulated desorption and electronic processes in sputtering and secondary-ion emission. The general experimental observables include desorption thresholds, chemical effects on desorption yields, ion energy distributions, ion angular distributions and the spectral dependence of the desorption yield. Mechanisms for desorption involve both direct excitation of valence levels and indirect excitations which proceed via core-hole excitation. The Auger decay of core-holes can create multiply ionised and excited states which are highly local, contain a large amount of energy and have intrinsically long lifetimes. A general discussion of the properties of these complex states is given, together with a discussion of their applicability to different types of covalent and ionic states. A number of examples of case studies in ion desorption are given, including CO and NO on metals, hydrogen on surfaces, oxides and oxygen on surfaces and desorption from cryosolids. The use of stimulated desorption as a surface-, site-and adsorbate-specific spectroscopy is treated, with discussions of general excitation physics, energetics and the interpretation of spectral structure. An appendix covers experimental methods for performing ion and neutral desorption experiments.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.