Highly efficient photovoltaic cells composed of interpenetrating conducting polymer/C-60 heterojunction

摘要

Photovoltaic properties of a photovoltaic cell with a structure of indium-tin-oxide (ITO)C-60/conducting polymer (CP)/Au have been investigated. The C-60/CP heterojunction in the photovoltaic cell was fabricated by spin-coating the solution of CP onto the C-60 thin film formed on ITO. Fabricated by this process, the photovoltaic cell has demonstrated the high efficiency for solar cells based on CPs. From the optical properties Of C-60/CP heterojunction and the direct surface observation by using scanning electron microscope and atmic force microscope, it has been clarified that the interpenetrating interface Of C-60 and CP contributes to the high photovoltaic performance.