Method for detecting solar cell leakage current by infrared thermal imager
An infrared thermal imager and solar cell technology, applied in the field of solar photovoltaics, can solve problems such as incomplete removal of edge junctions, cracks, too small parallel resistance of solar cells, etc., and achieve the effect of improving solar cell performance and simple structural layout
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[0020] The specific steps of the method for detecting the leakage current of a solar cell by using an infrared thermal imager provided by the embodiment of the present invention are as follows:
[0021] (1) Put the finished solar cell in a dark room, the back of the solar cell is in close contact with the stage with good heat dissipation, the positive and negative poles of the solar cell are connected to the stabilized power supply, and the infrared thermal imager is aligned Solar cell light-receiving surface;
[0022] (2) Use a stabilized power supply to apply a positive or negative bias to the solar cell, and then observe the infrared thermal image;
[0023] (3) Judging that the high temperature area shown in the infrared thermal image chart as obvious relative to the surrounding area is the leakage area;
[0024] (4) According to the position of the leakage zone and the manifestation under the positive and negative bias voltage, the reason for the leakage is inferred.
[0025] ...
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