Spincast Reduction Force-distance Workfunction self-assembled_monolayer Switching VortexCore Floppy InsulatorFilm SiliconCrystal Pores Silicon flakes Vinylpyridine SKPM Molybdenum_disulfide SFAs lift_mode Polystyrene PinpointPFM Lift lithography UnivMaryland FM_SKPM Non-ContactMode Conductance SolarCell SoftSample Ananth Lanthanum_aluminate Chromium Sadowski Liquid HighAspect food