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Composition for transparent conductive film of solar cell and transparent conductive film

A technology of transparent conductive film and solar cell, applied in conductive coatings, circuits, photovoltaic power generation, etc., can solve problems such as huge costs

Inactive Publication Date: 2012-10-03
MITSUBISHI MATERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the past, in these thin-film solar cells, the electrodes and reflective films were formed by vacuum film-forming methods such as sputtering, but generally a huge cost was required to introduce, maintain, and operate a large-scale vacuum film-forming device

Method used

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  • Composition for transparent conductive film of solar cell and transparent conductive film
  • Composition for transparent conductive film of solar cell and transparent conductive film
  • Composition for transparent conductive film of solar cell and transparent conductive film

Examples

Experimental program
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Effect test

Embodiment 1

[0086] In Example 1, first, as shown in the following Table 1, in the IPA used as the dispersion medium, ITO powder with an average particle diameter of 25 nm and ITO powder with an average particle diameter of 10 nm as conductive oxide powder were mixed in a ratio of 98:2. Spherical magnesium fluoride particles 1, and, with respect to the solid particles of the total conductive oxide particles and spherical magnesium fluoride particles, SiO is mixed at a ratio of 30% by mass 2 Binder 1 acts as a binder.

Embodiment 2

[0087] In Example 2, in ethanol used as a dispersion medium, ATO powder with an average particle diameter of 40 nm and spherical magnesium fluoride particles 2 with an average particle diameter of 15 nm as conductive oxide powder were mixed at a ratio of 95:5, and , the non-polymer-type binder 1 was mixed as a binder in a ratio of 10% by mass with respect to the total solid particles of the conductive oxide particles and the spherical magnesium fluoride particles.

Embodiment 3

[0088] In Example 3, in IPA used as a dispersion medium, TZO powder having an average particle diameter of 30 nm and spherical magnesium fluoride particles 2 having an average particle diameter of 15 nm as conductive oxide powder were mixed at a ratio of 92:8, and , with respect to the solid particles of the total conductive oxide particles and spherical magnesium fluoride particles, SiO was mixed at a ratio of 30% by mass 2 Binder 2 acts as a binder.

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Abstract

The present invention relates to a composition for a transparent conductive film used in a wet-type coating method for a thin film solar cell, and a transparent conductive film manufactured through the composition. Through increasing the difference between the transparent conductive film refractive index and the photovoltaic conversion refractive index, reflective light of a boundary surface of the transparent conductive film and the photovoltaic conversion layer can be added, and through the added light which is returned to the photovoltaic conversion layer, the transparent conductive film for enhancing the generating efficiency of the thin film solar cell can be formed, and the composition for forming the transparent conductive film can be formed. The composition for the transparent conductive film for the thin film solar sheet is characterized in that conductive oxide particles, globular magnesium fluoride particles with average grain size of 1 to 50mm and adhesive are provided, quantity ratio of the globular magnesium fluoride particles is 2 to 35 as the total quantity ratio of the conductive oxide particles and the globular magnesium fluoride particles is 100.

Description

technical field [0001] The invention relates to a composition for a transparent conductive film and a transparent conductive film. More specifically, it is related with the composition for transparent conductive films for thin-film solar cells, and a transparent conductive film. Background technique [0002] At present, from the standpoint of environmental protection, the research, development and practical application of clean energy are being promoted, and solar cells are attracting attention from the perspective that sunlight as an energy source is inexhaustible and pollution-free. Conventionally, monocrystalline silicon or polycrystalline silicon bulk solar cells have been used as solar cells. However, due to the high manufacturing cost and low productivity of bulk solar cells, it is urgent to develop solar cells that save silicon as much as possible. [0003] Therefore, efforts have been made to develop thin-film solar cells using semiconductors such as amorphous silic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D5/24C09D5/33H01L31/0224H01L31/04H01L31/20
CPCY02E10/50Y02P70/50
Inventor 日向野怜子米泽岳洋泉礼子山崎和彦
Owner MITSUBISHI MATERIALS CORP
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