| 초록 |
To achieve high power conversion efficiency (PCE) in bulk heterojunction (BHJ) polymer solar cells (PSCs), the introduction of three different materials in BHJ OPVs can induce to expand the absorption region within the solar absorption spectrum by applying to polymer blending system, which could lead to achieve cascade energy level useful for efficient charge transport. In order to have a well-miscible blend film without morphological traps, monitoring and tuning the crystalline of surface morphology is important, but suitable miscibility is the most important in blending system for high performance solar cells. In this study, we applied to polymer-polymer blend system using isoindigo-based conjugated copolymers. In the case of blending system containing multiple donors in BHJ PSC exhibited relatively high PCE. |
