Carbon‐Based Electrodes for Organic Solar Cells

Abstract

AbstractOrganic solar cells (OSCs) are a promising low‐cost thin‐film photovoltaic technology while the fabrication of transparent conductive oxide (TCO) and metal electrodes still remains a factor that hinders the scaling‐up and commercialization of OSCs. Carbon‐based materials are regarded as potential alternatives due to their excellent properties, such as low cost, solution processibility, high conductance, and good chemical stability. In this mini‐review, the recent progress of carbon‐based materials such as graphite, carbon nanosheets, graphene, and carbon nanotubes to replace the TCO and metal electrodes of OSCs is surveyed. The preparation methods of different carbon‐based materials are also discussed. Based on current progress, we summarize the outlooks and challenges of carbon‐based electrodes. We anticipate this mini‐review will inspire more research efforts to develop high‐performance and OSC‐matched carbon materials for more efficient and stable carbon‐electrode‐based OSCs.