Fig. 1. Graphene film/copper matrix cathode紫铜基底石墨烯薄膜阴极

Fig. 2. Graphene film/stainless steel matrix cathode不锈钢基底石墨烯薄膜阴极

Fig. 3. SEM image of graphene film/copper matrix cathode紫铜基底石墨烯薄膜SEM图

Fig. 4. SEM image of graphene film/ stainless steel matrix cathode不锈钢基底石墨烯薄膜SEM图

Fig. 5. Raman spectrum of graphene film/copper matrix cathode紫铜基底石墨烯薄膜拉曼光谱

Fig. 6. Raman spectrum of graphene film/ stainless steel matrix cathode不锈钢基底石墨烯薄膜拉曼光谱

Fig. 7. Test platform based on Tesla transformer for the switch

Fig. 8. Structural schematic of the switch

Fig. 9. Static electric field simulation for the switch

Fig. 10. Working voltage waveform on the switch

Fig. 11. Output voltage waveform on a resistive load

Fig. 12. U_BD versus pulse number for three kinds of cathodes

Fig. 13. U_BD versus pulse number for graphene/copper and graphene/stainless steel cathodes

Fig. 14. U_BD versus gas pressure for three kinds of cathodes