ScanningSpreadingResistanceMicroscopy MBE epitaxy HexacontaneFilm P3HT hydrocarbon Nanotechnology strontiu_titanate SPMLabs Tin disulfide CeNSE_IISc Tape AnodizedAluminumOxide Piranha dielectric trench Hysteresys Barium_titanate TPU fluoroalkane ItoGlass UTEM nanomechanical PANI temperature_control Composition Gallium LiquidCrystal UnivMaryland AM_KPFM Copolymer Titanate HexagonalBoronNitride SiWafer ElectrostaticForceMicroscopy Fluoride