LiquidCell Nanofiber PatternedSapphireSubstrat Semiconductor FM-KPFM Tapping Modulus Fiber HiVacuum piezoelectric force microscopy Dopped norganic MolecularSelfAssembly Ceramics Optical pinpoint mode CancerCell SiliconCrystal pulsed_laser_deposition MagneticPhase HexacontaneFilm frequency_modulation China molecular_beam multi_layer Friction ito_film cross section LateralForce StyreneBeads FastScan Force-distance Display BoronNitride ItoGlass