Anti-glare film for solar cell module, solar cell module provided with anti-glare film, and method for manufacturing same

Abstract

An anti-glare film (50) has, in order form a substrate (1) side, a first inorganic layer (10) and a second inorganic layer (20). The first inorganic layer (10) contains transparent spherical inorganic microparticles (12) in an inorganic binder (11). The inorganic binder (11) in the first inorganic layer (10) is obtained by hydrolysis of an Si-H bond and an Si-N bond. The second inorganic layer (20) contains an inorganic binder (21). Preferably, the average film thickness d1 of the first inorganic layer (10) is 500 nm to 2000 nm, the average film thickness d2 of the second inorganic layer (20) is 50 nm to 1000 nm, and the ratio d2 / d1 is 0.025 to 0.5. The second inorganic layer (20) may furthermore have microparticles (22). The anti-glare film (50) can be used as an anti-glare film for a solar cell module.

Description

technical field [0001] The present invention relates to an antiglare film for a solar cell module formed on a transparent insulating substrate of a solar cell module, and a solar cell module including the antiglare film. Furthermore, the present invention also relates to an antiglare film and a method for producing a solar cell module with the antiglare film. Background technique [0002] With the increasing call for the use of clean energy, promotion of the utilization of solar cells is being realized. Solar cells are usually put into practical use in the form of a solar cell module in which an electromotive force element (solar cell) including single crystal silicon or silicon thin film, compound semiconductor, etc. is sealed with a resin on a surface protective glass and a back protection glass. formed between the membranes. In addition, as a structure for reducing the cost of solar cell modules, it has also been proposed to form a transparent electrode layer, a semicon...

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Problems solved by technology

However, it has been pointed out that there is a problem of light pollution as follows: when a solar cell module having glass on the surface of the light incident side is installed on a roof or an outer wall, depending on the incident angle of sunlight, etc., there may be The reflected light of the solar cell module shines into the adjacent houses, etc.

If the glass substrate has a concave-convex structure, when integrating thin-film solar cells by laser scribing, laser light is scattered by the glass substrate, making it difficult to pattern electrode layers and semiconductor layers.

Therefore, it is difficult to apply the anti-glare method of forming concave-convex shapes on the glass substrate itself to thin-film solar cells integrated by laser scribing.

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