LiftHeight Polystyrene KAIST WWafer MBE Water Step Holes LowDensityPolyethylene fifber SiWafer Lateral Hair DNAProtein Nanotechnology ElectroChemical PolyStylene Conducting Yeditepe_University PMNPT Conductivity HexagonalBN Zhi MeltingPoint Solar Polyvinylidene ThermalConductivity InorganicCompound Force-distance AdhesionForce Spain semifluorinated alkane Tapping CP-AFM AIN