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Transparent conductive film composition for solar cell and transparent conductive film thereof

A transparent conductive film, solar cell technology, applied in conductive coatings, circuits, photovoltaic power generation, etc., can solve the problems of introducing, maintaining, and operating a lot of costs, and achieve the effect of simple power generation efficiency

Inactive Publication Date: 2012-05-09
MITSUBISHI MATERIALS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Conventionally, in this thin-film solar cell, electrodes and reflective films have been formed by vacuum film-forming methods such as sputtering, but the introduction, maintenance, and operation of large-scale vacuum film-forming equipment usually require a lot of cost

Method used

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  • Transparent conductive film composition for solar cell and transparent conductive film thereof
  • Transparent conductive film composition for solar cell and transparent conductive film thereof
  • Transparent conductive film composition for solar cell and transparent conductive film thereof

Examples

Experimental program
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Embodiment 1

[0087] In Example 1, first, as shown in the following Table 1, in the dispersion medium IPA, ITO powder with an average particle diameter of 25 nm and anisotropic hollow silica as conductive oxide powder were mixed in a ratio of 98 to 2. Particle 1 is further mixed with SiO as a binder in a ratio of 30% by mass with respect to 70% by mass of the total solid particles of the conductive oxide particle and the anisotropic hollow silica particle 1. 2 Binder1.

Embodiment 2

[0088] In Example 2, in the dispersion medium ethanol, ATO powder with an average particle diameter of 40 nm and anisotropic hollow silica particles 2 as conductive oxide powder were mixed at a ratio of 95 to 5. In addition, with respect to the conductivity The oxide particles and the anisotropic hollow silica particles 2 were 90% by mass of solid particles in total, and the non-polymer binder 1 as a binder was mixed in a ratio of 10% by mass.

Embodiment 3

[0089] In Example 3, in the dispersion medium IPA, TZO powder with an average particle diameter of 30 nm and anisotropic hollow silica particles 3 as conductive oxide powder were mixed at a ratio of 92 to 8. In addition, with respect to the conductivity The total solid particles of oxide particles and anisotropic hollow silica particles 3 are 70% by mass, and SiO as a binder is mixed at a ratio of 30% by mass. 2 Binder 2.

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Abstract

The present invention relates to a transparent conductive film composition used in a wet type coating method of the solar cell, and a transparent conductive film which is made from the composition. The invention provides the transparent conductive film which improves power generating efficiency of a thin-film solar cell by the added reflected light to a photoelectric conversion layer through enlarging difference between the refractive index of the transparent conductive film and the refractive index of the photoelectric conversion layer and adding the reflected light of an interface between the transparent conductive film and the photoelectric conversion layer, and a transparent conductive film composition which can form the transparent conductive film. The transparent conductive film composition for the solar cell is characterized in that: the transparent conductive film composition comprises conductive oxide particles, anisotropic hollow silicon oxide particles with average particle diameter of 1-50nm and adhesive; relative to total 100 by mass parts of the conductive oxide particles and the anisotropic hollow silicon oxide particles, the transparent conductive film composition comprises 2-35 by mass parts of anisotropic hollow silicon oxide particles.

Description

technical field [0001] The present invention relates to a composition for a transparent conductive film and a transparent conductive film. In more detail, it is related with the composition for transparent conductive films used for a solar cell, and a transparent conductive film. Background technique [0002] At present, from the standpoint of environmental protection, the research, development and practical application of green energy are being promoted, and solar cells are attracting attention because sunlight as an energy source is inexhaustible and pollution-free. In the past, bulk solar cells made of monocrystalline silicon or polycrystalline silicon 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 as much silicon as possible. [0003] Therefore, development of thin-film solar cells using semiconductors such as amorphous silicon having a thickness of, for e...

Claims

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Application Information

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IPC IPC(8): C09D1/00C09D5/24H01L31/0224H01L31/04H01L31/18
CPCY02E10/50Y02P70/50
Inventor 日向野怜子泉礼子山崎和彦林年治
Owner MITSUBISHI MATERIALS CORP