PDMS contact DeflectionOptics Aluminum Nanostructure PVAP3HT conductive HACrystal HafniumDioxide Steps SingleCrystal AdhesionForce temperature_control Holes TungstenDeposition FuelCell molecular_beam Conducting CopperFoil biocompatible EvatecAG Tape Hydroxyapatite molecular_self_assembly Hexacontane Inorganic_Compound Crystal MagneticPhase DNAProtein membrane KelvinProbeForceMicroscopy silicon_carbide LiNbO3 GranadaUniv OxideLayer