Modeling and Calculation of Electron Transmission Coefficient from Printed CNT Film to Vacuum

The conducting chains in printed CNT film were considered as (MI)iV or (MI)i-1MV configuration. The transport and field emission of electrons in printed CNT film can be considered as tunneling conduction. The transmission coefficient of an insulator barrier surrounding a CNT was calculated via quantum mechanical principle. When an electric field is applied to CNTs, the barrier of residual was considered as a group of rectangular potential barriers. The total transmission coefficient for a residual-covered emitter during emitting was solved numerically from the product of the two transmission coefficient for the potential barriers of residual and the vacuum level.