A general route towards secondary electron yield suppression based on graphene

Secondary electron yield suppression is of great importance for high power microwave components in satellite. Great efforts have been made to find an easy and effective way to suppress the secondary electron emission process. However, it's still a challenge. In this paper we report a new approach for secondary electron emission suppression which can realize reducing the secondary electron yield from 2.12 to 1.09. Compared with the traditional techniques, this approach makes use of graphene which is deposited by remote plasma enhanced chemical vapor deposition on the surface of the components to realize the suppression of the secondary emission. Raman spectroscopy was used to character the quality of graphene. The nano-membrane of grapheme further enhances the suppression effect and contributes little to the insertion loss of the surface. Our technique shows great potential in space applications.