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Solar cell element and device

A technology of solar cells and receiving devices, applied in electrical components, circuits, photovoltaic power generation, etc., can solve problems such as reducing conversion efficiency

Active Publication Date: 2014-07-23
EPISTAR CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Solar cell element and device
  • Solar cell element and device
  • Solar cell element and device

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Embodiment Construction

[0062] In order to achieve a more effective application of the light-receiving area of ​​the solar cell receiving device, the present invention proposes a solar cell structure and a solar cell receiving device composed of it. Figure 3A and Figure 3B A cross-section and a top view of a solar cell structure 2 implemented according to the present invention are disclosed. in, Figure 3A for along Figure 3B Transverse section of the A-A' cutting line in .

[0063] Taking the single-junction solar cell structure as an example, the solar cell structure 2 includes a substrate 201, a semiconductor epitaxial structure 21, a p-type semiconductor material layer 202 with a first conductivity characteristic, and an n-type semiconductor material layer with a second conductivity characteristic. The semiconductor material layer 203 is composed. In addition, a first electrode 22 is arranged on one side of the p-type semiconductor material layer 202, connected to the substrate 201 and ele...

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Abstract

The invention discloses a solar cell element and its device. The solar cell structure includes a polygonal semiconductor epitaxial structure with two adjacent sides having an angle greater than or less than ninety degrees; a first semiconductor material with a first conductive characteristic. layer; a second semiconductor material layer with a second conductive characteristic provided on the first semiconductor material layer; a first electrode, provided on one side of the first semiconductor material layer and electrically connected to the first semiconductor material layer; a first Two electrodes, disposed on one side of the second semiconductor material layer and electrically connected to the second semiconductor material layer, wherein the second electrode is disposed on the angle between two adjacent sides or adjacent to either side of the two adjacent sides side.

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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L31/052H01L31/0224H02S40/22
CPCY02E10/50Y02E10/52
Inventor 杨宇智
Owner EPISTAR CORP
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