Modification of the electrical and photoelectric properties of Mg0.15Cd0.85Te solid solutions as a result of pulsed laser irradiation within the transparency range

Changes in the equilibrium conductivity and photoconductivity of Mg0.15Cd0.85Te solid solutions exposed to pulsed laser radiation at a frequency from the transparency range of the crystal are studied as a function of the laser fluence. An increase in the photoconductivity and a shift of the photoconductivity long-wavelength limit to higher energies are found. A change in the electrical properties of the crystals is attributed to an increase in the concentration of donors with ionization energies E1 0.015 eV and E2 = 0.035 eV in the surface region. Possible causes and mechanisms of the changes in the photoelectric properties of the II-VI crystals exposed to laser radiation are analyzed