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Solar cell and solar cell module

A single cell and solar energy technology, applied in electrical components, circuits, photovoltaic power generation, etc., can solve the problem of lower output characteristics of solar single cells

Active Publication Date: 2017-08-01
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, the carriers generated by the incident light are recombined and eliminated, and the output characteristics of the solar cells are reduced.

Method used

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  • Solar cell and solar cell module
  • Solar cell and solar cell module
  • Solar cell and solar cell module

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Experimental program
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Embodiment Construction

[0022] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The materials, thicknesses, dimensions, the number of solar cells, the number of inter-cell wiring members, the number of solar cell strings, and the like described below are examples for description, and can be appropriately determined according to the specifications of the solar cells and solar cell modules. change. Hereinafter, the same reference numerals are assigned to corresponding elements in all the drawings, and overlapping descriptions are omitted.

[0023] figure 1 It is a plan view showing the structure of the solar cell module 10 . The solar cell module 10 includes a laminated body 14 and a frame 12 for holding ends of the laminated body 14 . The laminated body 14 is a member obtained by sandwiching a solar cell string formed by connecting a plurality of solar cells 16 in series with a filling member and a protective member on the light-receiving...

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Abstract

A solar cell (16) is provided with: an n-type single crystal silicon substrate (22); an n-type amorphous silicon layer (26) disposed on a first main surface of the n-type single crystal silicon substrate (22); a light receiving surface electrode (28) disposed on the n-type amorphous silicon layer (26); a p-type amorphous silicon layer (32) disposed on a second main surface of the n-type single crystal silicon substrate (22); and a rear surface electrode (34) disposed on the p-type amorphous silicon layer (32). The n-type single crystal silicon substrate (22) has a resistivity within a range of 3.5-13 ohm cm. An i-type amorphous silicon layer (24) may be provided between the n-type single crystal silicon substrate (22) and the n-type amorphous silicon layer (26), and another i-type amorphous silicon layer (30) may be provided between the n-type single crystal silicon substrate (22) and the p-type amorphous silicon layer (32).

Description

technical field [0001] The present invention relates to solar cells and solar cell assemblies. Background technique [0002] A single solar cell has a semiconductor substrate formed with a pn junction, and is a device for outputting photoelectromotive force by separating the carriers generated in the semiconductor substrate by incident light into holes and electrons through the pn junction. Recombination centers exist on the surface and inside the semiconductor substrate. As a result, the carriers generated by the incident light are recombined and eliminated, and the output characteristics of the solar cell are degraded. [0003] Patent Document 1 describes that an i-type amorphous silicon layer (i-type a-Si layer) and an n-type amorphous silicon layer are sequentially provided between an n-type single crystal silicon substrate and an n-type single crystal silicon substrate and a light-receiving surface electrode. Silicon layer (n-type a-Si layer), i-type amorphous silicon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L31/0747
CPCH01L31/0747H01L31/0504Y02E10/548Y02E10/50H01L31/0475H01L31/0376H01L31/075
Inventor 东方田悟司神田雅央汤川博喜
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD