A New Method of Accurately Measuring Photoconductive Performance of 4H-SiC Photoconductive Switches

A new method of accurately measuring the photoconductive performance of photoconductive semiconductor switch (PCSS) was proposed. By this method, we succeeded extracting the photoconductivity of 4H-SiC substrate free from the obstruction of parasitic inductance in the test circuit. Photoconductive performance of the PCSS was precisely measured, where a maximum ON-state photoconductivity of 6.26 (Ω...