Wonseok Materials ScanningThermalMicroscopy PvdfBead Stiffness PpLdpe light_emitting TappingMode PhaseTransition blended polymers Mosfet India Ananth Sapphire Scratch Photovoltaics MagneticForce Bmp PS_LDPE C36H74 Resistance SrTiO3 Spain LiquidImaging MagneticForceMicroscopy Conductance cooling SAM Cobalt-dopedIronOxide Monisha fe_nd_b ULCA PolymerPatterns Heating Nanofiber