Molecular bidirectional hydrogen-bonding bridge interface enables the fabrication of 27.5% efficient inverted perovskite solar cells and 17.5% flexible modules

TFSM constructs a bidirectional hydrogen-bonding bridge at the perovskite/C 60 interface, enabling efficient charge transfer and reduced energy loss, leading to 27.49% efficient inverted perovskite solar cells and 17.5% flexible modules.