Organic solar cells and methods of making the same
摘要
說明書
In summary, the selective removal of the electron acceptor component (e.g., PCBM or non-fullerene acceptor IT-M) from a photoactive blend film surface using a facile tape stripping technique not only minimizes the direct exposure of the electron acceptors to the oxygen or water molecules, but also significantly enhances the adhesion between the photoactive layer and the top electrode. The optimized blend films after the tape stripping exhibits higher durability under harsh ultrasonic conditions and bending stress tests under the water. Moreover, removing the surface electron acceptor component optimizes the blend film morphology in a vertical direction, which results in higher fill factors in the inverted solar cell structure. This approach will initiate a new frontier for the development of highly durable, all-weather organic solar cells that can be operable even under the water.
