Photoelectromagnetic Effect in Insulating CdS

Abstract

The short-circuit photoelectromagnetic current in insulating crystals of cadmium sulfide has been measured in a batch of electroluminescent crystals. The product ${\mathrm{}\left(\mathrm{mobility}\right)\mathrm{}}^3$×(lifetime) is found to be 1 ${\mathrm{cm}}^6$/${\mathrm{volt}}^3$ ${\sec }^2$. The sensitivity of the equipment is sufficient to detect the photoelectromagnetic effect for crystals whose product is as low as ${10}^{-5\mathrm{}}$ ${\mathrm{cm}}^6$/${\mathrm{volt}}^3$ ${\sec }^2$.