temperature controller AFM amplitude_modulation UTEM SAM Fujian Growing LowDensityPolyethylene heterojunctions LMF PolymerBlend Anneal PVA bias_mode Aggregated_molecules MechanicalProperties medical Nanopattern MultiLayerCeramicCapacitor TipBiasMode Varistor CalciumHydroxyapatite Resistance Regensburg multi_layer lift_mode Pinpoint LDPE alkanes Stiffness layers SolarCell SKPM 2dMaterials silicon_carbide StyreneBeads