Abstract: A solar cell apparatus according to the embodiment includes the steps of a support substrate; a back electrode layer on the support substrate; a light absorbing layer on the back electrode layer; a buffer layer on the light absorbing layer; and a front electrode layer on the buffer layer, wherein the back electrode layer comprises: a first electrode part having a first thickness; and a second electrode part adjacent to the first electrode part and having a second thickness less than the first thickness. A method for fabricating a solar cell apparatus according to the embodiment includes the steps of forming a back electrode layer on a substrate; etching the back electrode layer; forming a light absorbing layer on the back electrode layer; forming a buffer layer on the light absorbing layer; and forming a front electrode layer on the buffer layer.

Abstract: A solar cell according to the disclosure includes a back electrode layer; and a light absorbing layer on the back electrode layer, wherein the light absorbing layer includes an undoped region and a doping region on the undoped region, and the doping region includes zinc. A method of fabricating a solar cell according to the disclosure includes forming a back electrode layer on a substrate; forming a preliminary light absorbing layer on the back electrode layer; forming a dopant supply layer on the preliminary light absorbing layer; and diffusing the dopant supply layer.

Abstract: Disclosed are a solar cell and a method for manufacturing the same. The solar cell includes a substrate, a back electrode layer on the substrate, a light absorbing layer on the back electrode layer, a buffer layer on the light absorbing layer, and a window layer on the buffer layer. The buffer layer is formed through a chemical equation of (AxZn1-x)O(0?x?1), in which the A represents a metallic element.

Abstract: According to the embodiment, there is provided a solar cell including: a back electrode layer; a light absorbing layer on the back electrode layer; a buffer layer on the light absorbing layer; and a front electrode layer on the buffer layer, wherein the front electrode layer comprises an intrinsic region and a doping region having a conductive dopant, and a concentration of the conductive dopant is gradually lowered in upward and downward directions from an excess doping region of the doping region.

Abstract: According to the embodiment, there is provided a solar cell apparatus. The solar cell apparatus includes a back electrode layer on a substrate, a light absorbing layer on the back electrode layer, a buffer layer on the light absorbing layer, a front electrode layer on the buffer layer, and a connection part making contact with the front electrode layer, passing through the light absorbing layer, and making contact with the back electrode layer. The connection part includes a material different from a material constituting the front electrode layer.

Abstract: According to the embodiment, there is provided a solar cell apparatus. The solar cell apparatus includes a back electrode layer on a substrate, a light absorbing layer on the back electrode layer, a buffer layer on the light absorbing layer, a front electrode layer on the buffer layer, and a connection part making contact with the front electrode layer, passing through the light absorbing layer, and making contact with the back electrode layer. The connection part includes a material different from a material constituting the front electrode layer.

Abstract: Disclosed are a solar cell apparatus and a method for manufacturing the same. The solar cell apparatus includes a substrate; a back electrode layer including molybdenum on the substrate; a light absorbing layer on the back electrode layer; and a window layer on the light absorbing layer, wherein the back electrode layer includes a first electrode layer on the substrate, a barrier layer on the first electrode layer and a second electrode layer on the barrier layer.

Abstract: A solar battery according to the embodiment of the present invention includes a rear electrode formed on a substrate and separated by a first through-hole; a light absorbing layer formed on the rear electrode including the first through-hole; a second through-hole exposing the rear electrode through the light absorbing layer; a buffer layer formed on the upper surface and the side surface of the light absorbing layer; a front electrode layer formed on the buffer layer; and a connection wiring extending from the front electrode layer and formed within the second through-hole.

Abstract: According to the embodiment, there is provided a solar cell including: a back electrode layer; a light absorbing layer on the back electrode layer; a buffer layer on the light absorbing layer; and a front electrode layer on the buffer layer, wherein the front electrode layer comprises an intrinsic region and a doping region having a conductive dopant, and a concentration of the conductive dopant is gradually lowered in upward and downward directions from an excess doping region of the doping region.

Abstract: A solar cell according to the disclosure includes a back electrode layer; and a light absorbing layer on the back electrode layer, wherein the light absorbing layer includes an undoped region and a doping region on the undoped region, and the doping region includes zinc. A method of fabricating a solar cell according to the disclosure includes forming a back electrode layer on a substrate; forming a preliminary light absorbing layer on the back electrode layer; forming a dopant supply layer on the preliminary light absorbing layer; and diffusing the dopant supply layer.

Abstract: A solar cell apparatus according to the embodiment includes the steps of a support substrate; a back electrode layer on the support substrate; a light absorbing layer on the back electrode layer; a buffer layer on the light absorbing layer; and a front electrode layer on the buffer layer, wherein the back electrode layer comprises: a first electrode part having a first thickness; and a second electrode part adjacent to the first electrode part and having a second thickness less than the first thickness. A method for fabricating a solar cell apparatus according to the embodiment includes the steps of forming a back electrode layer on a substrate; etching the back electrode layer; forming a light absorbing layer on the back electrode layer; forming a buffer layer on the light absorbing layer; and forming a front electrode layer on the buffer layer.

Abstract: According to the embodiment, there is provided a solar cell apparatus. The solar cell apparatus includes a back electrode layer on a substrate, a light absorbing layer on the back electrode layer, a buffer layer on the light absorbing layer, a front electrode layer on the buffer layer, and a connection part making contact with the front electrode layer, passing through the light absorbing layer, and making contact with the back electrode layer. The connection part includes a material different from a material constituting the front electrode layer.

Abstract: Disclosed are a solar cell and a method of fabricating the same. The solar cell includes a back electrode layer, a light absorbing layer on the back electrode layer, a front electrode layer on the light absorbing layer, and a plurality of light path changing particles in the front electrode layer or between the light absorbing layer and the front electrode layer.

Abstract: A solar cell according to an embodiment includes a back electrode layer on a support substrate; a light absorbing layer on the back electrode layer; a front electrode layer on the light absorbing layer; and a plurality of metal nanowires on the front electrode layer, the metal nanowires being arranged a form of a mesh.

Abstract: Disclosed are a solar cell and a method for manufacturing the same. The solar cell includes a substrate, a back electrode layer on the substrate, a light absorbing layer on the back electrode layer, a buffer layer on the light absorbing layer, and a window layer on the buffer layer. The buffer layer is formed through a chemical equation of (AxZn1-x)O(0?x?1), in which the A represents a metallic element.

Abstract: Disclosed are a solar cell apparatus and a method for manufacturing the same. The solar cell apparatus includes a substrate; a back electrode layer including molybdenum on the substrate; a light absorbing layer on the back electrode layer; and a window layer on the light absorbing layer, wherein the back electrode layer includes a first electrode layer on the substrate, a barrier layer on the first electrode layer and a second electrode layer on the barrier layer.

Abstract: A solar battery according to the embodiment of the present invention includes an rear electrode formed on a substrate and separated by an first through-hole; an light absorbing layer formed on the rear electrode including the first through-hole; a second through-hole exposing the rear electrode through the light absorbing layer; a buffer layer formed on the upper surface and the side surface of the light absorbing layer; a front electrode layer formed on the buffer layer; and a connection wiring extending from the front electrode layer and formed within the second through-hole.

Abstract: Disclosed is a solar cell apparatus. The solar cell apparatus includes a substrate, and a solar cell on the substrate. The substrate includes a support layer below the solar cell, and a reinforcement part provided below the support layer and having an open region to expose a bottom surface of the support layer.