BTO BFO CeNSE_IISc SAM Indent Array Mechanical&nanotechnology Terrace AM-KPFM Friction Optoelectronic PinPointMode Tapping Titanate 3-hexylthiophene LiBattery FastScan molecules ito_film Aluminium_Oxide Styrene Sio2 food doped Trench YttriaStabilizedZirconia Wildtype mechanical property Layer Growth SingleLayer FrequencyModulation ScanningTunnelingMicroscopy NUS Lateral_Force_Microscopy