초록 |
Considering current status that solution processed polymer solar cells (PSCs) have received an increasing attention as candidates for a low cost printable photovoltaic application, improvement of long-term stability and development of simple and fast printing technique have been emerged as an important issue to accelerate the realization of low cost power sources. Here, we demonstrate efficient and stable BHJ solar cells containing 2-dimensional carbon nanostructures and metal oxide interfacial charge transport layer produced by spray pyrolysis and brush painting, which are a relatively facile and atmospheric pressure method for the deposition of thin charge transport layer with low cost and high speed. Structural, electrical, chemical and optical characteristics of thin interfacial charge transport layer and their influence on performance of PSCs as well as long-term stability will be discussed. |