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Future Photovoltaic is being increasingly forced to reduce costs and increase module power by constant or better module reliability [1]. So over the last years a radical decrease of module prices is observed on the contrary the module power changes to higher classes. This indicates that the common used materials (e.g. frames, solder ribbon, wafer, metallization etc.) join their physical limits. This...
In this contribution a classification of recombination active defects in multicrystalline silicon solar cells is introduced. On a macroscopic scale the classification is performed by using forward and reversed biased electroluminescence imaging (EL / ReBEL) and imaging of sub-band defect luminescence (ELsub). The luminescence behavior due to structural defects already present in the wafer can be divided...
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