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Structure and Principles

Comparing spherical solar cells (without reflector) and flat solar cells ...

1. Low current

2. Low voltage

3. Area efficiency is poor with spheres

* The light receiving area (pn junction area) of the sphere is four times that of the flat plate.
* The diode reverse saturation current Jo, which is proportional to the pn junction area, is four times that of a flat plate in a sphere.
* The open-end voltage value Voc of the solar cell decreases as Jo increases.
* Voc is 40 to 60 mV lower than the flat plate.This value is about 10% of the total Voc
Solve these problems! !!

For our spherical solar cells

Condensing improves performance and reduces the amount of silicon

2022/6
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Clean Venture 21 Corporation

612-8445
Kyoto City, Fushimi-ku, Takeda Jobodaiin-cho 41

TEL. 075-612-2100
FAX: 075-612-2177
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