temp_control AtomicSteps Polyvinylidene NTU FrictionalForceMicroscopy Etch Boron Molybdenum_disulfide BiasMode NUSNNI molecules Hexylthiophene Solar Beads DeoxyribonucleicAcid HfO2 Oxide DomainSwitching Phosphide semifluorinated_alkane Co/Cr/Pt CVD Inorganic #Materials ScanningKelvinProbeMicroscopy Permalloy Patterns Step lithography Optical LateralPFM pinpoint mode FrictionForce plastics Reduction