Mo CIGS CIGS CIGS Control method of preferred orientation of Mo and CIGS thin film using a graphene coating manufacturing method of CIGS type solar cell and the CIGS type solar cell made by the manufacturing method

摘要

The present invention provides a new method for manufacturing solar cell including a glass substrate, a Mo rear surface electrode and a CIGS type thin film, which can control and manufacture the Mo rear surface electrode and the CIGS type thin film in a desired crystal orientation. A method for controlling a crystal of the Mo rear surface electrode and the CIGS type thin film using a graphene layer comprises the following steps: forming a graphene layer on the glass substrate; forming the Mo rear surface electrode on the graphene layer; forming a CIGS type precursor layer on the Mo rear surface electrode; and selenizing or sulphurizing the CIGS type precursor layer under an atmosphere in which selenium (Se) or sulfur (S) are supplied.