Low-energy Electrons Interactions with Chemisorbed and Physisorbed Films of L-cysteine/Au(111)

We investigate electron attachment to chemisorbed and physisorbed L-cysteine/Au(111) films and its subsequent dissociation via electron stimulated desorption (ESD) measurements; More specifically, dissociative electron attachment (DEA) which in essentially, molecular dissociation into a neutral and anionic fragment following initial electron capture into short-lived molecular anion or resonance leads to the rupture of specific bonds, if the incident electron energies are within characteristic ranges (below 20 eV). (paper)