Properties of the Ternary Compound ZnIn2S4 at High Electric Field

Abstract

ZnIn2S4single crystals,grown from the vapor phase by iodine transport, display interesting current‐voltage characteristics at high electric fields. Some crystals under illumination show an n‐type negative‐resistance effect. However, in other crystals which do not show such an effect, current oscillations occur whose frequency is strongly dependent on the applied electric field and the intensity of the light by which the crystal is illuminated. Furthermore at still higher electric fields, a permanent transformation of the crystals takes place; in these new conditions the crystals display an s‐type negative‐resistance effect.