Method and device for assessing the quality of a solar cell

A device for contactlessly assessing a quality of a solar cell, the device comprising:

• a first measurement configuration and a second measurement configuration;
• the first measurement configuration is adapted to shade a first sub-region of the solar cell or, via a radiation source, to cause excitation radiation to impinge on said first sub-region in accordance with a first set of parameters and to cause excitation radiation to impinge on a second sub-region of the solar cell in accordance with a second set of parameters, which is different than the first set of parameters, and, a detector device configured to measure a first intensity of luminescent radiation emitted by the solar cell in the first sub-region or in the second sub-region;
• the second measurement configuration is adapted, via the radiation source, to cause excitation radiation to impinge on the second sub-region of the solar cell in accordance with a third set of parameters, which is different than the first set of parameters, and to shade the first sub-region of the solar cell or to cause excitation radiation to impinge on said first sub-region in accordance with the first set of parameters and, the detector device is further configured to measure a second intensity in the respective other sub-region relative to the first measurement configuration, or the second measurement configuration is adapted via the radiation source, to cause excitation radiation to impinge homogeneously on the solar cell in the first and second sub-regions in accordance with a fourth set of parameters, and the detector device is further configured to measure the second intensity in at least one of the first sub-region or the second sub-region;
• and
• the detector device is in communication with a computing unit, and the computing unit is configured to determine quality information depending on the first intensity and the second intensity.