layers BTO Inorganic Pinpoint PFM UnivMaryland LateralForceMicroscopy Silicon MolecularSelfAssembly Laser HexagonalBN domain_switching CompactDisk semifluorinated alkane Polymer Wonseok Piezoelectric FuelCell PS_LDPE 2dMaterials Resistance Memory Graphite TemperatureControllerAFM SKKU NUS_Physics self_assembly Pinpoint Holes Dopped CalciumHydroxyapatite ULCA plastics MfmAmplitude Gong Composition