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

29th International Conference on Photonic, Electronic, and Atomic Collisions

Alizadeh, Elahe^1 ; Massey, Sylvain^2 ; Sanche, Léon^2 ; Rowntree, Paul A.^1

Department of Chemistry, University of Guelph, Guelph

N1G 2W1, Canada^1

Groupe en Sciences des Radiations, Faculté de Médecine et des Sciences de la Santé, Université dé Sherbrooke, Sherbrooke

J1H 5N4, Canada^2

关键词: Dissociative electron attachment;    Electron attachment;    Electron stimulated desorption;    Incident electrons;    Low energy electrons;    Molecular anions;    Molecular dissociation;    Physisorbed films;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/635/6/062008/pdf
DOI  :  10.1088/1742-6596/635/6/062008

来源: IOP

【 摘 要 】

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).