Patent ID: 10043933

Abstract:
A solar cell and a method for manufacturing the same are discussed. The solar cell can include a semiconductor layer containing first impurities and having a front surface and a back surface, the front surface being a light incident surface, a first portion on the back surface of the semiconductor layer, the first portion being more heavily doped with second impurities different from the first impurities than the semiconductor layer, and forming a p-n junction with the semiconductor layer, a second portion on the back surface of the semiconductor layer, the second portion being more heavily doped with the first impurities than the semiconductor layer, a third portion on the back surface of the semiconductor layer between the first portion and the second portion, a first electrode on the back surface of the semiconductor layer and connected to the first portion, a second electrode on the back surface of the semiconductor layer and connected to the second portion, and a passivation layer on the back surface of the semiconductor layer and contacting the first portion.