Fig. 1. Device structure and equivalent circuit model of VDIG-PCSS. (a) Structure of one cell; (b) equivalent circuit

Fig. 2. Schematic of space-charge region distribution of VDIG-PCSS in static state

Fig. 3. Simulation models of VDIG-PCSS and traditional PCSS. (a) VDIG type; (b) traditional type

Fig. 4. Electric potential distribution of VDIG-PCSS at various bias voltages

Fig. 5. Comparison of volt-ampere characteristic curves of VDIG-PCSS and traditional PCSS

Fig. 6. Electric field distribution of VDIG-PCSS in static state when bias voltage is 10 kV (cutline at x=10 μm)

Fig. 7. Pulse waveforms of gate voltage and laser for triggering VDIG-PCSS

Fig. 8. Comparison of transient output characteristics of VDIG-PCSS and traditional PCSS

Fig. 9. Influences of laser beam diameter on photocurrent waveform of VDIG-PCSS