FIELD: physics.
SUBSTANCE: method of controlling the structural quality of thin films for light-absorbing solar cell layers is that the radiation of films is recorded under pulsed laser excitation. The excitation level is set in the range of 10-200 kW/cm2 for the appearance of stimulated emission with the spectrum half-width of Δλ~10 nm, and the intensities and half-widths of the stimulated emission spectra are compared to determine the relative structural quality of the films.
EFFECT: simplification of controlling the structural quality of thin films for light-absorbing solar cell layers.
4 dwg
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