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Dye-sensitized solar cell

A technology of solar cells and dye sensitization, which is applied in the field of solar cells, can solve problems such as waste, and achieve the effects of avoiding waste, improving parallel resistance, and simple operation

Inactive Publication Date: 2013-02-06
张陆成
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] Specifically, such as figure 2 As shown, there is a leakage defect 7 at the pn junction 4 within the plane of the solar cell
Since the small pieces of solar cells cut out are much larger than the area of ​​the leakage defect itself, generally reaching 10cm 2 Above, so there are still many areas with considerable photoelectric conversion efficiency, so if it is discarded, it will cause a lot of waste

Method used

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Embodiment Construction

[0074] Hereinafter, the present invention will be described in detail with reference to the drawings. In addition, in the following description, the size, thickness, dimension, etc. of each part illustrated in the drawings referred to may differ from the actual dimensional relationship of the semiconductor device.

[0075] The solar cell of the present invention includes a positive electrode, a photoelectric conversion region, and a negative electrode. There are defects on the surface or inside of the solar cell. The maskless localized etching device for removing defects on the surface or inside of the solar cell of the present invention includes: supplying liquid a pipe for supplying a chemical corrosion solution to the region corresponding to the defect on the surface of the solar cell; and a drain pipe for removing reactants produced by the reaction between the chemical corrosion solution and the solar cell from the region .

[0076] specifically, figure 2 A schematic st...

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Abstract

The invention relates to a dye-sensitized solar cell which is characterized by comprising a first substrate, a second substrate and a photovoltaic conversion layer. The photovoltaic conversion layer is disposed between the first substrate and the second substrate and comprises an electrolytic condenser and dye adsorption units, and the dye adsorption units are distributed in the electrolytic condenser. The dye-sensitized solar cell and a diode are arranged on the top of a lampshade, is connected to a storage battery in a barrel through a conductor wire.

Description

technical field [0001] The invention belongs to the technical field of solar cells, and in particular relates to a maskless localized etching method and device for removing defects on the surface and inside of solar cells. Background technique [0002] Solar photovoltaic power generation has attracted more and more attention, the photovoltaic industry is developing rapidly, and new technologies are emerging one after another. In order to meet specific technical process requirements, it is necessary to develop suitable process devices. Solar cells mainly include crystalline silicon solar cells, thin-film solar cells, and dye-sensitized solar cells. [0003] Crystalline silicon solar cells include monocrystalline silicon solar cells and polycrystalline silicon solar cells. At present, crystalline silicon solar cells account for more than 90% of solar cell production. [0004] In order to explain the problem without loss of generality, figure 1 It is a schematic diagram of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/20
CPCY02E10/542
Inventor 许欣翔
Owner 张陆成
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