SOLAR CELL MODULE PROVIDED WITH AN EDGE SPACE
The solar cell module having a preferable edge space that prevents characteristics of a solar cell such as conversion efficiency from being deteriorated without making processes complicated is provided. In a solar cell module including a substrate glass, a first layer formed on the substrate glass and a second layer formed on the first layer, the first layer is removed by a first removing means having a first energy amount to provide a first edge space in which the first layer is not formed between an end part of the first layer and an end part of the glass substrate, and the second layer is removed by a second removing means having a second energy amount to provide a second edge space in which the second layer is not formed between an end part of the second layer and the end part of the glass substrate. A width of the second edge space is larger than a width of the first edge space.
1 - 8 . (canceled)
9 . A solar cell module comprising:
a substrate glass;
a first layer formed on the substrate glass and
a second layer formed on the first layer,
wherein the first layer is removed by a first removing means having a first energy amount to provide a first edge space in which the first layer is not formed between an end part of the first layer and an end part of the glass substrate,
the second layer is removed by a second removing means having a second energy amount to provide a second edge space in which the second layer is not formed between an end part of the second layer and the end part of the glass substrate,
a width of the second edge space is larger than a width of the first edge space,
the second layer is divided into a plurality of cells by a plurality of division grooves that divide the second layer,
the second edge space is formed so as to be perpendicular to the division grooves,
the first edge space is formed so as to be perpendicular to the division grooves,
the first layer is harder than the second layer, and
the second energy amount is smaller than the first energy amount.
10 . A solar cell module according to claim 9 , wherein the first layer comprises a first electrode including molybdenum.
11 . A solar cell module according to claim 9 , wherein the second layer comprises:
a CIS layer formed on the first layer;
a buffer layer formed on the CIS layer; and
a second electrode layer formed on the buffer layer.
12 . A solar cell module according to claim 9 , wherein the width of the first edge space is 10 mm or more and the width of the second edge space is larger by 0.1 mm or more than the width of the first edge space.
13 . A solar cell module according to claim 9 , wherein the first removing means is a pulse laser or a sandblaster.
14 . A solar cell module according to claim 9 , wherein the second removing means is a pulse laser or a mechanical scribe.