Solar cell
A technology of solar cells and circuit layers, applied in the field of solar cells, to achieve the effects of easy miniaturization, reduced volume, and improved performance
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no. 1 example
[0035] The circuit layer 211 can be a single layer or multiple layers, and can be formed on the same side or different sides of the optical substrate 21 . The circuit layer 211 is a single layer as an example; if the circuit layer 211 is multi-layered and formed on different sides of the optical substrate 21 , they can be connected to each other through vias of the optical substrate 21 . The light-concentrating structure 212 may include at least one Fresnel pattern, at least one lens (lens) or a plurality of prisms (prisms). Here, the Fresnel pattern is taken as an example. In this embodiment, a reflective layer can be coated on the outer surface of the light concentrating structure 212, or the design of the angle on the light concentrating structure 212 (for example, greater than the critical angle to form total reflection) can be used, so that the optical substrate 21 has the ability to reflect light function, and the focal point of the light concentrating structure 212 can ...
no. 2 example
[0042] Please refer to Figure 5 As shown, the main difference between a solar cell 2c in the third embodiment of the present invention and the solar cell 2a is that the solar cell 2c also includes a substrate 24, which is arranged opposite to the optical substrate 21, and the solar cell assembly 22 faces the substrate 24 . The substrate 24 may be at least partly transparent or opaque. Since the optical substrate 21 of this embodiment is reflective, the substrate 24 needs to be at least partly transparent. In this embodiment, there is a space or a cavity (chamber) is formed between the substrate 24 and the optical substrate 21. Here, the cavity 26 is used as an example, and the cavity 26 is sealed by the sealing member 27. cavity. Wherein, the sealing member 27 may be formed of colloid or solid, for example, and may have insulation properties.
no. 3 example
[0044] Fourth embodiment
[0045] Please refer to Figure 6 As shown, a solar cell 2d in the fourth embodiment of the present invention is similar to the solar cell 2c, the main difference is that the optical substrate 21 of the solar cell 2d is a refracting substrate, and the outer surface of the light concentrating structure 212a is not coated with reflective The light emitted by the sun is directly incident on the side of the light concentrating structure 212 a, and passes through the optical substrate 21 to be collected on the solar cell module 22 .
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