Subhajjit self_assembly nanobar solar_cell FM_KPFM LifeScience Boundary Hair Floppy FM-KPFM CNT SFAs Formamidinium_lead_iodide Device EFMAmplitude Magnetic Force Microscopy TungstenThinFilmDeposition EvatecAG Calcite Piezoresponse HumanHair Friction pulsed_laser_deposition Optoelectonics FrictionalForceMicroscopy IVSpectroscopy polymeric_arrays NeodymiumMagnets thermal_property Varistor kelvin probe force microscopy Polypropylene F14H20 Electical&Electronics Hexatriacontane