molecular_self_assembly PVA Edwin INSPParis Ni81Fe19 Subhajjit ring shape BCZT Reading PhthalocyaninePraseodymium ThermalDetectors NtuEee 2d_materials biocompatible LowDensityPolyethylene Pvdf PhaseChange suspended_graphene SThM Liquid Wafer Ananth Graphene Tape ULCA Switching ScanningSpreadingResistanceMicroscopy MoS2 Fujian NanoLithography CNT piezoelectric force microscopy TemperatureControlledAFM SurfaceOxidation plastics