Lanthanum_aluminate TPU DNAProtein Tungsten_disulfide Memory Varistor ScanningKelvinProbeMicroscopy ring shape pulsed_laser_deposition kelvin probe force microscopy Melt Conducting Singapore BFO WPlug Topography Step PolymerBlend LateralForceMicroscopy TiO2 SiWafer Edwin AM_KPFM ForceMapping FM_SKPM Sio2 self-assembled_monolayer thermal_property PolyStylene Titanate LiNbO3 P3HT Formamidinium_lead_iodide mono_layer Metal