KelvinProbeForceMicroscopy EvatecAG Monisha Vinylpyridine Force-distance conductive LogAmplifier ElectrostaticForceMicroscopy WS2 STM Solution polyvinyl acetate temperature_control Pinpoint Molybdenum_disulfide Pore ThermalConductivity InorganicCompound MESA structure Indent cannabidiol Sulfur high_resolution non_contact LiNbO3 single_layer Chemical_Vapor_Deposition IcelandSpar Nanopattern electrospinning Mapping vertical_PFM StrontiuTitanate KevlarFiber small_scan