Polymer/Fullerene Solar Cell Interfaces Studied with Impedance Spectroscopy

摘要

Solar energy has tremendous potential to supply the world's energy needs. One hour of sunlight provides more energy than the world consumes in a year [1]. However, solar energy is also very costly compared to other energy resources and therefore contributes less than 1% to the world's energy consumption [1-2]. Organic photovoltaic (PV) solar cells may be the key to reducing the overall cost of PV systems by utilizing high throughput manufacturing techniques such as reel-to-reel or spray deposition [3]. Before these devices can be realised, there are a few challenges to overcome. In a broad sense, the efficiency, stability, and manufacturing of these devices all need to be addressed.