FAPbI3 Annealed Flake lift_mode mfm_amplitude Hair Biofilm dichalcogenide SThM CNT TiO2 Global_Comm CBD BTO Laser Transparent Steps temp Grain CHRYSALIS_INC FrictionalForceMicroscopy molecular_self_assembly Boundary UnivOfMaryland Defects VinylAlcohol DiffractiveOpticalElements membrane Ferroelectric align PECurve domain_switching PUR TriGlycineSulphate Perovskite