SOLAR CELL MODULE AND METHOD FOR PRODUCING SOLAR CELL MODULE

摘要

A solar cell module with an anti-glare property, capable of exhibiting a high antifouling property. A surface of a plate body made of glass in the module is roughened, and an antireflection film is laminated thereon. A change point at which the slope of the contour line of the surface changes steeply exists on a cross-section cutting through the plate body in the thickness direction. With the change point as a boundary, straight lines obtained by pseudo-leveling of the contour lines existing within 0.7 micrometer on one side and 0.7 micrometer on another side, are a one-side pseudo-straight line and an other-side pseudo-straight line, respectively, a steep slope portion in which an angle formed by the pseudo-straight lines is 135 degrees or less, and a total number of less than 5 large cracks having an opening width of 0.2 micrometer or more are distributed per 58-micrometer compartment range.

主权项

1. A solar cell module comprising:
a glass plate body made of glass and having a macroscopically flat surface; and a photoelectric conversion unit, the solar cell module generating electricity in the photoelectric conversion unit by making light incident from a glass plate body side to a photoelectric conversion unit side, wherein the surface of the glass plate body is provided with an antireflection film and is itself microscopically irregular, the surface of the glass plate body having; a change point at which a slope on a contour line of the surface of the glass plate body changes steeply when a cross-section cutting through the glass plate body in a thickness direction is observed; a steep slope portion in which the glass plate body itself is recessed and an angle formed by a one-side pseudo-straight line obtained by psuedo-leveling of the contour line within 0.7 micrometer on one side and an other-side psuedo-straight line obtained by psuedo-leveling of the contour line within 0.7 micrometer on another side with the change point as a boundary is 135 degrees or less; and a large crack having an opening width of 0.2 micrometer or more, some or all of the steep slope portion and some or all of the large crack of the surface of the glass plate body itself are filled with a substance that forms the antireflection film, and a surface of the antireflection film has a contour line of a gentle curve, the surface of the antireflection film having a total number of less than 5 steep slope portions and large cracks per each 58-micrometer compartment range at the surface of the antireflection film.