HexagonalBN Calcite Polystyrene PolymerPatterns Scratch contact TemperatureControllerStage PinpointNanomechanicalMode Temasek_Lab ShenYang Styrene membrane Chloroform GaP lithography kelvin probe force microscopy PFM hard_disk PS_PVAC CuSubstrate BFO Chemical Vapor Deposition Fluoride Polyvinylidene GaN heterojunctions SICM TiO2 Solar UnivOfMaryland ReflexLens Aluminium_Oxide plastics LiIonBattery ito_film