Solar cell element and device

Abstract

The invention discloses a solar cell element and a solar cell device. A solar cell structure comprises a polygonal semiconductor epitaxial structure, a first semiconductor material layer, a second semiconductor material layer, a first electrode and a second electrode, wherein the polygonal semiconductor epitaxial structure is provided with two adjacent side edges with an inclined angle of more than or less than 90 degrees; the first semiconductor material layer is provided with a first conductive characteristic; the second semiconductor material layer is arranged on the first semiconductor material layer and is provided with a second conductive characteristic; the first electrode is arranged on one side of the first semiconductor material layer and is electrically connected with the first semiconductor material layer; the second electrode is arranged on one side of the second semiconductor material layer and is electrically connected with the second semiconductor material layer; and the second electrode is arranged on the inclined angle between the two adjacent side edges or adjacent to any one of the two adjacent side edges.

Description

technical field [0001] The invention relates to a solar cell structure and a solar cell receiving device combined with the solar cell structure, in particular to a solar cell receiving device with high area utilization efficiency. Background technique [0002] Due to the looming energy crisis, the development of alternative energy sources has attracted much attention. Among many alternative energy sources, solar energy has a huge energy supply and is an excellent alternative energy source. Among all the types of solar cells under development, III-V family concentrating solar cells are one of the most promising research and development directions because the energy conversion efficiency can be as high as 40%. [0003] Please refer to figure 1 , figure 1 It is an existing III-V concentrating solar cell receiving mechanism 1 schematic diagram. in accordance with figure 1 As shown, the concentrating solar cell receiving mechanism 1 includes a heat dissipation base 12; a so...

AI Technical Summary

Problems solved by technology

Depend on figure 2 It can be clearly seen that the part of the light receiving region 14 located at the four corners is not used for converting current, in other words, not all the area of ​​the light receiving region 14 can be fully utilized, thus reducing the conversion efficiency

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