Field emission from polymer flims

At present a significant attention is focused on the search for new perspective materials for low-threshold field emission cathodes which could be work stable in the relatively low (~10.~ Torr) vacuum conditions. There are many designs of field emission cathodes on the base of carbon-like materials and diamond films [l-51. The low electron affinity, wide bandgap and excellent transport properties of some conducting organic polymers suggest that they might also provide good cathode materials (61. Here we demonstrate that it is so also for imidesiloxane copolymer.