Doping-free silicon solar cell and the Fabrication method thereof

摘要

The present invention relates to an amorphous silicon solar cell that includes an upper/lower electrode and an interfacial electrode applying an electric field between light absorption layers without a doping process. Because a doping process is not carried out, a harmful doping gas is not used. Also, because a window layer for receiving light is used as a metallic oxide which has high light transmission and a function of transferring holes, the loss of light reaching a light absorption layer can be minimized and the photocurrent density improved.