fe_nd_b polyvinyl acetate Treatment ScanningIon-ConductanceMicroscopy Copper Piezoresponse Sic Current HydroGel Logo GranadaUniv Deposition VerticalPFM ScanningKelvinProbeMicroscopy ReflexLens NusEce NUSNNI PolyimideFilm PinPointMode Subhajjit Sio2 LiIonBattery Pattern ito_film SicMosfet Polydimethylsiloxane Indent Pores Polyimide blended polymers FFM Semiconductor Growth HDD BiVO4