ForceDistanceSpectroscopy SetpointMode semifluorinated alkane PS_LDPE small_scan Hafnia C_AFM MfmAmplitude neodymium_magnets Chungnam_National_University PVAC Electical&Electronics Fet India ImideMonomer MetalCompound SoftSample Blood FuelCell Forevision Dr.JurekSadowski ElectroChemical Writing Tungsten_disulfide OrganicSemiconductor SKKU Display TemperatureControllerAFM norganic Fujian Nanotechnology Potential LFM Adhesive kelvin probe force microscopy