Current oscillations in Ag3In5Se9 stimulated by electric field and IR-irradiation

Abstract

The results of study of the current oscillations in Ag3In5Se9 stimulated by electric field and IR-irradiation have been presented. Depending on intensity and wavelengths of IR-irradiation, intensity of the electric field and temperature current oscillations in a range of frequencies 0,8 ÷ 200 Hz are observed. The revealed features of the current oscillations stimulated in Ag3In5Se9 single crystals by an electric field and the IR-irradiation are explained on the basis of three-level system in the consent with which field dependence of the capture cross-section for charge carriers on local levels stimulates intrinsic photoconductivity at excitation of the sample by IR-irradiation in the range 1,12 ÷ 1.2 μm and 1,56 ÷ 1,75 μm.