Scanning_Thermal_Microscopy Scratch MetalCompound plastic fluorocarbon PS_LDPE BloodCell VinylAlcohol BTO Ptfe biocompatible SThM Etch BiVO4 EFMAmplitude Hexylthiophene lift_mode Foil IIT-chennai PANI self_healing phase_change SetpointMode Hole FrictionForce Spincast TCS conductive ReflexLens Ni81Fe19 SingleLayer Device silicon_oxide HighAcpectRatio FM_KPFM