TappingMode FM_KPFM Optoelectronic flakes #Materials Fujian LiBattery Biofilm LMF HexagonalBoronNitride DNA ForceMapping Tape Stiffness PS_LDPE DIWafer Techcomp Ucl Workfunction SingleLayer NUS Yttria_stabilized_Zirconia SmalScan Beads Roughness Grain Growing STO Barium_titanate Praseodymium Christmas MetalCompound dichalcogenide SetpointMode thermal_property