实验研究了快脉冲触发固体有机薄膜开关的欠压比、触发脉冲幅值、极性效应和间隙距离对触发特性的影响.固体有机薄膜开关具有较快的脉冲前沿,但其触发性能因条件不同而差异很大.对于自击穿电压为10kV的18μm薄膜,在工作电压9kV,触发脉冲上升沿为1ns,脉冲40ns,幅值9kV条件下,测得开关时延为1.1ns,时延抖动为0.2ns.

This article presents experimental results of the trigger characteristics of fast-pulse-triggered polymer-foil switch. The results show that the ratio of working voltage to self-greakdown voltage, the trigger voltage, the polarity and the distances between electrodes influence the switch's performance significantly. The risetime of output pulse is smaller than 2ns that includes the risetime of measure system, the delay is 1～2ns and the jitter is sub-nanosecond. The delay and jitter decrease with raising the trigger voltage and the ratio of working voltage to self-breakdown voltage, and increase with enlarging the distances between main electrodes and trigger electrode. Among the four polarity combinations, the delay and the jitter are minimum for 'p-n', follow in sequence for 'n-p' and 'n-n', and maximum for 'p-p'. For 18μm polymer-foil switch the self-breakdown voltage is 10kV, and the delay and jitter is about 1.1ns and 0.2ns respectively at working voltage 9kV and trigger voltage 9kV.