non_contact Collagen WWafer 3-hexylthiophene thermal_property CuSubstrate mechanical_property I-VSpectroscopy InsulatorFilm Ferroelectric Phase Chungnam_National_University PolymerPatterns Layer LMF LiftMode DOE chemical_compound Topography Foil Stiffness Treatment Tape UnivMaryland Global_Comm suspended_graphene Memory ImideMonomer food Trench ForceVolume Ucl Domain Kevlar Conductance