PEDOT:PSS:Zn(NTf2)2 for rigid and flexible p-i-n structured perovskite solar cells: Strategies and applications

We report the enhanced properties of PEDOT:PSS:Zn(NTf2)2 characterized by an electrical conductivity of 223.47S/cm, and show its application potentials in rigid and flexible, p-i-n structured perovskite solar cells (PSCs) as the hole transport layer (HTL). With optimized doping, PEDOT:PSS:Zn(NTf2)2 exhibited much enhanced conductivity and anti-bending ability. When PEDOT:PSS:Zn(NTf2)2 was applied as HTL in rigid PSCs, the power conversion efficiency was relatively improved by 35.1 %. In flexible ones, by 37.3 %.

Automated summary

We report the enhanced properties of PEDOT:PSS:Zn(NTf2)2, characterized by an electrical conductivity of 223.47S/cm, and demonstrate its potential applications as the hole transport layer (HTL) in both rigid and flexible, p-i-n structured perovskite solar cells (PSCs). Through optimized doping, PEDOT:PSS:Zn(NTf2)2 exhibited significantly improved conductivity and resistance to bending. When used as HTL in rigid PSCs, the power conversion efficiency was increased by 35.1%. In flexible PSCs, the improvement reached 37.3%.