METHOD FOR FABRICATING SOLAR CELL INCLUDING NANOSTRUCTURE

摘要

Provided is a method for fabricating a solar cell including a nanostructure, which includes the steps of: preparing a substrate formed with a first electrode; forming a mixture thin film layer, in which an electron donor material and a sacrificial polymer which is immiscible with the electron donor material are mixed, on the first electrode; forming the nanostructure of the electron donor material by removing the sacrificial polymer in the mixture thin film layer by heat treatment; forming an electron acceptor material layer on the nanostructure of the electron donor material; and forming a second electrode on the electron acceptor material layer. According to the present invention, a nanostructure may be introduced to the inside of a photoactive layer via a simple method, so that the manufacturing costs of a solar cell may decrease. In addition, optical absorption efficiency, electron-hole separation efficiency and movement efficiency may increase, thereby improving the photovoltaic efficiency of a solar cell.