polymeric_arrays ForceVolumeImage Styrene MetalCompound polyvinyl acetate Multiferroic_materials YszSubstrate contact LMF CeNSE_IISc optoelectronics Ferroelectric SICM fifber Logo self-assembled_monolayer MolecularSelfAssembly KevlarFiber Pipette pinpoint mode PpLdpe PvdfFilm thermal_conductivity FrictionForce ThermalDetectors FrictionalForceMicroscopy Polyvinylidene_fluoride Fiber ForceVolume Bio Sidewall Worcester_Polytechnic_Institute Sulfur Sapphire kelvin probe force microscopy