Polysilane-Inserted Methylammonium Lead Iodide Perovskite Solar Cells Doped with Formamidinium and Potassium
Takeo Oku, Satsuki Kandori, Masaya Taguchi, Atsushi Suzuki, Masanobu Okita, Satoshi Minami, Sakiko Fukunishi, Tomoharu Tachikawa
Abstract
Polysilane-inserted CH3NH3PbI3 perovskite photovoltaic devices combined with potassium and formamidinium iodides were fabricated and characterized. Decaphenylcyclopentasilane layers were inserted at the perovskite/hole transport interface and annealed across a temperature range of 180–220 °C. These polysilane-coated cells prevented PbI2 formation, and the conversion efficiencies were improved over extended periods of time.
Topics & Concepts
FormamidiniumPolysilanePerovskite (structure)IodideMaterials sciencePotassiumDopingChemistryInorganic chemistryChemical engineeringOptoelectronicsComposite materialCrystallographyPolymerMetallurgyEngineeringPerovskite Materials and ApplicationsConducting polymers and applicationsQuantum Dots Synthesis And Properties