Evaluating Impact on Electroluminescence Image Quality and Quantitative Analysis using Different Camera Technologies

Electroluminescence images of modules obtained with InGaAs, scientific Si CMOS, cooled Si CCD, and DSLR CMOS camera technologies have been compared and analyzed. The quality of the images have been examined in terms of feature visibility. Calibrated electroluminescence image analysis was performed on many of these images to extract quantitative cell-level performance characteristics and the results from each of the cameras were compared. Image processing techniques were explored to examine their effect on image quality and quantitative analysis.