Celebration fluorocarbon Modulus NUS_Physics Adhesive Anneal FFM GaP piezoelectric force microscopy LateralForce graphene_hybrid Forevision Mechanical BiasMode AM_SKPM sputter PetruPoni_Institute Alkane Mfm UnivOfMaryland HOPG InorganicCompound cannabidiol Ni-FeAlloy PinpointPFM NeodymiumMagnets SetpointMode PVAP3HT MultiferroicMaterials ContactMode light_emitting Cancer Laser mono_layer TappingMode