The aim of this thesis is the characterization of electrical properties of solar cell using CCD camera. Diagnostic methods are based on electroluminescence and microplasma emitted from the surface of the solar cell. The results are then compared with the method LBIC (Light Beam Induced Current) and described the various defects in industrial production.

Diploma thesis deals with crystalline solar modules i relation to PID phenomenon. The thesis focuses on methods of investigation of changing electrical parameters, in the course of PID degradation, such as prallel resistance and leakage current. The effect of degradation will be examined by V-A characteristics and by electroluminiscence method.

This work deals with determination defects in solar cells using non-destructive methods. Defects are determinating by electroluminescence method and microplasma method in temperature influence. Temperature will be changed by Peltier cells. By using this various temperatures during the testing we can receive more objective results thanks to simulated operation conditions.