Photon-stimulated ion desorption for PMMA thin film in the oxygen K-edge region studied by Auger electron-photoion coincidence spectroscopy

Photon stimulated ion desorption from poly(3-methylthiophene) following sulphur K-shell excitation

“…The strong Coulomb interaction between the two holes in an Auger final state leads to the fragmentation and desorption due to the Coulomb repulsion [18], i.e., the so-called Coulomb explosion mechanism. This is the well known Auger stimulated ion desorption (ASID) mechanism that was studied extensively for molecules adsorbed or condensed on surfaces [19][20][21][22][23][24] as well as polymers [25][26][27].…”

Theoretical studies on the molecular dependence of bond dissociation after core excitations II: CH3CO(CH2)nCN, n = 0–3

“…By using soft X‐ray radiation, a characteristic chemical reaction that cannot be observed in the valence region is expected, such as a specific bond scission and molecular elimination. One of the typical examples is the site‐specific bond scission following core excitation 1–10. The core electrons are localized in an atom, and core excitation is reflected in the surrounding chemical environment of the atom.…”

Photon stimulated ion desorption of condensed CO2 at ~ 85 K studied by synchrotron radiation

“…In the PSID model of Knotek and Feibelman [9,10], the multiple holes formed in the valence orbitals are created via intra-atomic or inter-atomic Auger transitions following corelevel excitation of adsorbate molecules. This is the well known Auger Stimulated Ion Desorption (ASID) mechanism that was studied extensively for molecules adsorbed or condensed on surfaces [11][12][13] as well as polymers [14][15][16][17][18]. In addition to such a direct process another (indirect) process, X-ray induced electron stimulated desorption (XESD) [19,20] is an important mechanism for desorption of species from a surface when no direct excitation of the top monolayers is produced.…”