PIDcon bifacial
PIDcon bifacial: for quality control of bifacial PERC/PERC+ solar cells, HIT, Topcon, c-Si solar cells, mini modules and more ObstacleThe change to a light capping rear side of the cells, was found to make bifacial PERC cells and modules sensitive to new types of PID at the rear side, namely PID of the de-polarization type (PID-p) and a corrosive PID mechanism (PID-c). SolutionIn order to test cells for these kinds of PID, the PIDcon bifacial was developed. It is stressing the complete cell with temperature, illumination and high voltage, which can be polarized in both directions. By measuring the IV curve under illumination the PID sensitivity can be determined. Applications PID detection at cell level Research, Production & Quality Control of PERC, AL-BSF, PERC+, bifacial PERC, PERT, PERL and IBC solar cells Video Session of 10th Silicon PV by K. Sporleder from Fraunhofer CSP, Germany Highlights Measurements of cells Test duration: 4 hours (typical) Ability to meas