Thin-film solar cell and fabrication method thereof

Abstract

The present invention relates to a thin-film solar cell and a fabrication method thereof, the solar cell having a structure that a glass substrate, a transparent conductive oxide, a multi-junction solar cell layer and an electrode layer are stacked, wherein a first solar cell layer and a second solar cell layer, which are in a multi-junction, are electrically connected with each other in parallel, and one or more unit cells connected in parallel are grouped to be electrically connected with each other in series. According to the present invention, a thin-film solar cell having a unit cell in a structure that two solar cell layers having different characteristics are connected with each other in parallel, and having a structure that several unit cells are connected with each other in series, can achieve higher output and efficiency than a thin-film solar cell having a structure that several solar cell layers are connected in series.

Dependencies are inferred from the claim text.