ON THE MECHANISM OF THE EMISSION OF HIGH-ENERGY ELECTRONS FROM THE SURFACES OF FRESHLY PEELED FILMS - POLYTETRAFLUOROETHYLENE

This paper describes the results of an investigation of high-electron emission accompanying the mechanical disruption of adhesive contact in vacuo. Investigations of such emission parameters as the energy of th e electrons, their angular distribution, depth of the electron capture center levels on freshly formed polymer surfaces responsible for the emission as well as the establishment of relations governing the time variation of the parameters of the emitted electrons' flux, their rela tion to the polymer film surface charge, and finally the numerical com putations based on these experiments have led the authors to the concl usion that the mechanism of electron emission from freshly formed poly mer film surfaces has a field-emission nature proceeding from surface states and is described accurately enough by the analytical expression s derived from the above considerations.