IndiumTinOxide Edwin Piezoresponse PinpointPFM Sic non_contact Pyroelectric PtfeMembrane plastics Pinpoint Lattice VerticalPFM AM-KPFM Photovoltaics Monisha Worcester_Polytechnic_Institute Dental Pinpoint PFM Genetic blended polymers TriGlycineSulphate PVAC LiBattery polyvinyl acetate kelvin probe force microscopy margarine mfm_amplitude Polystyrene Copolymer GaN Praseodymium PvdfFilm fifber Anneal Beads