Enhanced photovoltage and stability of perovskite photovoltaics enabled by a cyclohexylmethylammonium iodide-based 2D perovskite passivation layer
Weihai Sun, Jinjun Zou, Xiaobing Wang, Shibo Wang, Yitian Du, Fengxian Cao, Zhang Lan, Jihuai Wu, Peng Gao
Abstract
) of 1.19 V, which contributes to an impressive PCE of 22.06% on account of the improved charge extraction and decreased non-radiative recombination. More importantly, an excellent long-term stability along with mitigated hysteresis was observed for the modified devices as a result of the suppressed ion migration and high humidity resistance of the 2D perovskite film. Our finding provides a comprehensive approach for simultaneously enhancing the efficiency and stability of PSCs through dimension engineering utilizing CMA-based 2D perovskite materials.
Topics & Concepts
Perovskite (structure)PassivationMaterials sciencePhotovoltaicsIodideLayer (electronics)Energy conversion efficiencyHeterojunctionPerovskite solar cellOptoelectronicsMoistureChemical engineeringPhotovoltaic systemNanotechnologyInorganic chemistryComposite materialChemistryElectrical engineeringEngineeringPerovskite Materials and ApplicationsConducting polymers and applicationsQuantum Dots Synthesis And Properties