Advances in New and Renewable Energy >
Analysis of Solar Cell Power Output Under Oblique Light and the Effect of Texture Type
Received date: 2015-04-27
Revised date: 2015-07-22
Online published: 2015-08-30
In real running, solar cells are mostly under obliquely incident light. However, the power output parameters of solar cells and modules are measured under vertically incident light, and they are used as a standard measure of the power output. This may cause problem in judging the real power output capability of differently surface-textured solar cells. Through theoretical analysis of light reflection and tests of the actual electrical current output of both the pyramid-type textured mono-crystalline and the pit-type textured multi-crystalline silicon solar cells and modules，it is shown that, the power output in real running of multi-crystalline solar cell relative to the mono-crystalline solar cell is slightly underestimated, if the current standard output parameters are used to judge the output performance. Further analysis indicates that the underestimation is less than 3%. Generally, various methods of antireflection actually optimize the power output under vertically incident lighting, while the gain of power output in real running would not as much as the standard measurement result exhibits.
Key words： obliquely incident light; texture; power output
HAN Yu-zhe , HUANG Hai-bin , ZHOU Lang . Analysis of Solar Cell Power Output Under Oblique Light and the Effect of Texture Type[J]. Advances in New and Renewable Energy, 2015 , 3(4) : 256 -260 . DOI: 10.3969/j.issn.2095-560X.2015.04.003
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