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Concentrating solar cell provided with inner spherical surface

A solar cell and inner spherical technology, applied in the field of solar cells, can solve the problems of high manufacturing cost, large amount of silicon material, low photoelectric conversion efficiency, etc., and achieve the effect of reducing the amount of raw materials

Inactive Publication Date: 2014-04-09
徐毅
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, flat-panel solar cells and concentrating solar cells still have the problems of large amount of silicon materials, high manufacturing costs, and low photoelectric conversion efficiency. Concentrating solar cells also have the problem of cooling.

Method used

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  • Concentrating solar cell provided with inner spherical surface
  • Concentrating solar cell provided with inner spherical surface

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Embodiment Construction

[0013] On the inner wall of the cavity glass, it is formed by techniques such as sputtering and vapor deposition figure 2 The coating shown is, on the glass substrate, a metal Al film, a P-type semiconductor layer, an N-type semiconductor layer, a transparent electrode layer SnO2 film, and a ZnO film in order to make an inner spherical semiconductor photovoltaic cell, and open a hollow sphere. A circular opening, a closed cover is fixed upward in the center of the circular opening, and the infrared filter Fresnel lens is installed on the upper end of the closed cover with a screw buckle and a buckle plastic connector, so that the infrared filter Fresnel lens The focal point of the lens is in the cavity below the circular opening. A small circular opening is opened on the hollow sphere to lead out the battery output terminal. In this embodiment, the diameter of the infrared filter Fresnel lens is 600 mm, and the diameter of the hollow sphere is 150 mm. The light-receiving area...

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Abstract

Theinvention provides a concentrating solar cell provided with an inner spherical surface. The concentrating solar cell provided with the inner spherical surface includes an infrared filtering Fresnel condensing lens. The concentrating solar cell provided with the inner spherical surface is characterized in that a semiconductor photovoltaic cell is made on an inner wall of a glass sphere having an empty cavity; an opening is arranged in the semiconductor photovoltaic cell having the inner spherical surface; and the infrared filtering Fresnel condensing lens is arranged above the opening of the semiconductor photovoltaic cell having the inner spherical surface. The material consumption of the concentrating solar cell provided with the inner spherical surface provided by the invention is reduced by 80 to 90 percents than that of a common flat silicon wafer solar cell, so that the solar cell cost is reduced substantially. The photovoltaic cell provided with the inner spherical surface receives illumination of rays having far higher light intensity than common sunlight. At the same time, the PN junction area of the photovoltaic cell provided with the inner spherical surface is large, so that the photoelectric conversion rate is improved substantially. The infrared filtering Fresnel condensing lens is made of doped PMMA resin capable of filtering heating photons in sunlight effectively, so that a cooling problem of a prior concentrating solar cell is solved.

Description

technical field [0001] The invention belongs to solar cells. technical background [0002] Improving the photoelectric efficiency of solar cells and reducing manufacturing costs are two major trends and requirements for the development of solar cell technology. At present, flat-panel solar cells and concentrating solar cells still have the problems of large amount of silicon materials, relatively high manufacturing costs, and low photoelectric conversion efficiency, and concentrating solar cells also have the problem of cooling. Contents of the invention [0003] The object of the present invention is to provide a light concentrating inner spherical solar cell with high photoelectric conversion rate and low manufacturing cost. As shown in the accompanying drawings, the present invention includes an infrared filter Fresnel concentrating lens, which is characterized in that A semiconductor photovoltaic cell is made on the inner wall of the glass cavity sphere, an opening is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02S40/20
CPCY02E10/50
Inventor 徐毅徐政
Owner 徐毅
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