dielectric trench C60H122 fluorocarbon MESA structure Chemical_Vapor_Deposition I-VSpectroscopy BismuthVanadate Dopped AdhesionEnergy Dental CompactDisk Array LFM LithiumNiobate hydrocarbon LiftHeight mono_layer CopperFoil TipBiasMode OpticalElement 3-hexylthiophene Mapping FM_KPFM Copper solar_cell Holes Force-distance NUSNNI CeNSE_IISc molecules plastics ScanningSpreadingResistanceMicroscopy Graphite FM-KPFM Piezoresponse