Synergetic Effects of Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate) with Nanomaterials for Efficient Hole Extracted Perovskite Photovoltaics

摘要

Organic-inorganic halide perovskite materials have been touted for their excellent light-absorbing properties, implying great potential for low-cost fabrication of high-performance solar cells. Nevertheless, numerous studies revealed that choice of materials and optimization of device architecture is crucial for realizing high efficiency photovoltaics consisting perovskite photoactive materials. PEDOT:PSS, poly (3,4-ethylenedioxythiophene):poly (styrenesulfonate), has been widely selected as a hole transport material, for its high transparency, which allows enough light to the photoactive layer. However, perovskite solar cells with PEDOT:PSS hole transport layer often suffers low stability, due to the high acidity compared to the other devices.