Modification of Ceo/CTo+Pd film structure under electric field influence during electron emission

Abstract

We investigated the modification of structure of Ceo/Cyo+Pd films during cold electron emission from these films. Films were obtained by vacuum thermal deposition from two sources and were characterised before and after electron emission measurements by transmission electron microscopy and electron diffraction. Films were composed of nanocrystalline Pd objects dispersed in carbon/fullerenes matrix. I-V characteristics for electron emission were obtained in diode geometry with additionally applied voltage along the film surface. The modification of film structure occurred under applied electric field and the grouping of Pd nanocrystals into bigger objects was observed.